APPSC Group-I Prelims 2024
378 questions from the 2024 papers, each with the official answer and an explanation.
A question repeated across years is listed once, under one of the years it appeared.
- Q201SCHOOL PHYSICS
Consider the following statements regarding Sun Halo : I. Sun Halo is an optical phenomenon that occurs due to sunlight refracting in millions of hexagonal ice crystals suspended in the atmosphere. II. Sun Halo takes the form of a ring with a radius of approximately 22 degrees around the Sun. III. Sun Halo is specifically produced by cumulonimbus clouds, which are thin, detached hair-like clouds. Which among the above statements is/are correct ?
- aI and II onlyAnswer
- bII only
- cI and III only
- dII and III only
Explanation coming soon.
- Q202SCHOOL PHYSICS
Consider the following statements regarding Sun Halo: I. A Sun Halo is an optical phenomenon caused by the refraction of sunlight in millions of hexagonal ice crystals floating in the atmosphere. II. A Sun Halo takes the form of a ring with a radius of approximately 22 degrees around the Sun. III. A Sun Halo is exclusively produced by cumulonimbus clouds, which are thin, detached hair-like clouds. Which of the statements given above is/are correct?
- aI and II onlyAnswer
- bII only
- cI and III only
- dII and III only
Explanation
Option A is correct because a 22-degree halo is an optical phenomenon formed by the refraction of sunlight through millions of suspended hexagonal ice crystals, typically present in high-altitude cirrostratus clouds. Option B: It omits statement I, which correctly describes the refraction of light through hexagonal ice crystals. Option C: It incorrectly includes statement III, which erroneously claims halos are produced by cumulonimbus clouds rather than cirrus or cirrostratus clouds. Option D: It omits statement I and includes the false statement III.
- Q203Logical reasoning and analytical ability
In a new year party, out of the total guests, 60% are women. If 80% of the guests are married couples (form a pair of husband and wife) and the rest are unmarried, then which of the following statements are correct ? I. All men are married. II. More than 30% of women are unmarried. Select the correct answer using the codes given below :
- aI only
- bII only
- cBoth I and IIAnswer
- dNeither I nor II
Explanation
Option C is correct because 80 married guests comprise 40 men and 40 women, meaning all 40 men are married, and 20 out of 60 women (33.33%) are unmarried, making both statements true. Assume total guests = 100 Women = 60, Men = 40 Married couples = 80 guests, comprising 40 husbands and 40 wives Married men = 40 out of 40 (100%), so all men are married Married women = 40, leaving unmarried women = 60 - 40 = 20 Percentage of unmarried women = (20 / 60) * 100 = 33.33%, which is greater than 30% Option A: overlooks statement II, which is mathematically verified as 33.33% exceeds 30%. Option B: overlooks statement I, which is verified because the number of married men equals the total number of men. Option D: incorrectly rejects both statements despite both being mathematically proven.
- Q204Logical reasoning and analytical ability
In a New Year's party, 60% of the total guests are women, 80% of the guests are married couples (husband and wife are together as a couple), and the rest are unmarried. Which of the following statements is correct? I. All men are married. II. More than 30% of women are unmarried. Select the correct answer using the codes given below:
- aI only
- bII only
- cBoth I and IIAnswer
- dNeither I nor II
Explanation
Option C is correct because both statements I and II are mathematically correct based on the given percentages. Assume 100 guests in total: 60 women and 40 men 80 guests form 40 married couples (40 husbands and 40 wives) All 40 men are married, so statement I is true Unmarried women equal 60 minus 40, which is 20 women 20 out of 60 women equals 33.33%, which is more than 30%, so statement II is true Option A: Incorrect because statement II is also true. Option B: Incorrect because statement I is also true. Option D: Incorrect because both statements logically hold true.
- Q205Logical reasoning and analytical ability
Read the below given statements followed by conclusions. Choose the conclusion which logically follows from the given statements : Statements : All professors are doctors. All doctors are engineers. Some professors are lawyers. Conclusions : I. All professors are engineers. II. All engineers are lawyers. III. Some doctors are lawyers.
- aOnly conclusion I follows
- bOnly conclusions I and III followAnswer
- cOnly conclusions I and II follow
- dOnly conclusions II and III follow
Explanation coming soon.
- Q206Logical reasoning and analytical ability
Read the following statements and conclusions. Choose the conclusions that logically follow from the given statements: Statements: All professors are doctors. All doctors are engineers. Some professors are lawyers. Conclusions: I. All professors are engineers. II. All engineers are lawyers. III. Some doctors are lawyers.
- a1) Only conclusion I follows.
- b2) Only conclusions I and III follow.Answer
- c3) Only conclusions I and II follow.
- d4) Only conclusions II and III follow.
Explanation
Option B is correct because combining 'All professors are doctors' and 'All doctors are engineers' yields 'All professors are engineers' (Conclusion I), and since 'Some professors are lawyers' and all professors are doctors, the overlapping professors must also be doctors, making 'Some doctors are lawyers' (Conclusion III) valid. Option A: It omits Conclusion III, which is also a valid and necessary deduction. Option C: Conclusion II assumes all engineers are lawyers, which is an invalid generalization from an I-type premise. Option D: Conclusion II does not follow, and it omits the valid Conclusion I.
- Q207Logical reasoning and analytical ability
There are 5 members in the family by names Ravi, Madhu, Mahesh, Raghu and Praveen. Praveen is taller than Raghu but not as fat as Raghu. Mahesh is taller than Ravi but shorter than Madhu. Ravi is fatter than Raghu but not as fat as Madhu. Praveen is thinner than Mahesh, who is thinner than Raghu. If they are arranged in an ascending order, i.e., fattest to thinnest, who will come in the middle ?
- aPraveen
- bRaghuAnswer
- cMahesh
- dMadhu
Explanation coming soon.
- Q208Logical reasoning and analytical ability
In a hostel room, five people P, Q, R, S and T read a novel. The one who reads the novel first gives it to R. The one who reads the novel last has taken it from P. T is not the first or the last to read the novel. There are two readers between Q and P. Identify those two readers between Q and P in the same order.
- aR and S
- bR and TAnswer
- cT and S
- dS and T
Explanation coming soon.
- Q209Logical reasoning and analytical ability
Directions for questions 19-21: As part of the Bathukamma festival, the Green Field Apartment Association held games for children. In a race, Keerthi, Jyotsna, Pallavi, Rama and Shweta took part. They got five different ranks, 1 to 5 (rank 1 is the fastest and rank 5 the slowest). The following is also known: I. Keerthi was not the first to finish the race. II. Pallavi did not get 5th rank, but finished after Keerthi. III. Rama finished the race after Jyotsna. IV. The sum of Keerthi's and Shweta's ranks equals the sum of Pallavi's and Rama's ranks. If the sum of the ranks of Swetha and Pallavi is 8, then who got the 4th rank ?
- aKeerthi
- bRamaAnswer
- cPallavi
- dSwetha
Explanation coming soon.
- Q210Logical reasoning and analytical ability
Directions for questions 19-21: As part of the Bathukamma festival, the Green Field Apartment Association held games for children. In a race, Keerthi, Jyotsna, Pallavi, Rama and Shweta took part. They got five different ranks, 1 to 5 (rank 1 is the fastest and rank 5 the slowest). The following is also known: I. Keerthi was not the first to finish the race. II. Pallavi did not get 5th rank, but finished after Keerthi. III. Rama finished the race after Jyotsna. IV. The sum of Keerthi's and Shweta's ranks equals the sum of Pallavi's and Rama's ranks. Among the five girls, who could not have finished the race after Pallavi ?
- aKeerthiAnswer
- bRama
- cSwetha
- dCannot be determined
Explanation coming soon.
- Q211Logical reasoning and analytical ability
In a hostel room, five people P, Q, R, S, and T were sleeping in a single row. The person who read the novel first later gave it to R. The person who read the novel last took it from P. T was neither the first nor the last person to read the novel. There are two readers between Q and P. Identify the two readers between Q and P in the same order.
- aR and S
- bR and TAnswer
- cT and S
- dS and T
Explanation
Option B is correct because R read the novel second and T read it third, placing them directly between Q and P in that order. R took the novel from the first reader, so R is 2nd. The last reader took it from P, so P is 4th. T was neither 1st nor 5th, so T is 3rd. Q must be 1st to allow two readers between Q and P. S is 5th, giving the complete reading sequence Q, R, T, P, S. Option A: S is the fifth reader, not one of the readers between Q and P. Option C: T read before S, but S read after P rather than between Q and P. Option D: S was the last reader and did not read between Q and P.
- Q212Logical reasoning and analytical ability
There are 5 members in a family: Ravi, Madhu, Mahesh, Raghu, and Praveen. Praveen is taller than Raghu but not heavier than Raghu. Mahesh is taller than Ravi but shorter than Madhu. Ravi is heavier than Raghu but not heavier than Madhu. Praveen is thinner than Mahesh and Mahesh is thinner than Raghu. If the weights of the family members are arranged in ascending order (heaviest first and thinnest last), who comes in the middle?
- aPraveen
- bRaghuAnswer
- cMahesh
- dMadhu
Explanation
Option B is correct because arranging the members from heaviest to thinnest places Raghu exactly in the middle position. Madhu is heavier than or equal to Ravi Ravi is heavier than Raghu Raghu is heavier than Mahesh Mahesh is heavier than Praveen Decreasing weight order: Madhu, Ravi, Raghu, Mahesh, Praveen Option A: Praveen is the thinnest family member and stands at the end of the order. Option C: Mahesh is the second thinnest, occupying the fourth position. Option D: Madhu is the heaviest family member, occupying the first position.
- Q213Logical reasoning and analytical ability
(Instructions for questions 19-21) During the Bathukamma festival, sports competitions were organized for children under the aegis of Green Field Apartments Association. As part of this, Keerthi, Joshna, Pallavi, Rama, and Shweta participated in a race. They obtained different ranks from 1 to 5 in the race (1 being the fastest and 5 being the slowest). The following information was also known: I. Keerthi was not the person who finished the race first. II. Pallavi did not get the 5th rank, but finished the race after Keerthi. III. Rama finished the race after Joshna. IV. The sum of Keerthi's and Shweta's ranks is equal to the sum of Pallavi's and Rama's ranks. Among the five girls who participated in the race, who was the last to finish the race?
- aShwetaAnswer
- bPallavi
- cKeerthi
- dRama
Explanation
Option A is correct because Shweta finishes in fifth place, making her the last person to complete the race. The ranks from 1 to 5 sum to 15. Joshna's rank equals 15 minus twice the sum of a pair, making it an odd number. Joshna cannot be 5th because Rama finished after her, and cannot be 3rd without violating conditions, so Joshna is 1st. Keerthi and Shweta sum to 7, as do Pallavi and Rama. Keerthi cannot be 1st and finishes before Pallavi, placing Keerthi at 2nd, Pallavi at 3rd, Rama at 4th, and Shweta at 5th. Option B: Pallavi finished in third place, which is before the final position. Option C: Keerthi finished in second place. Option D: Rama finished in fourth place.
- Q214Logical reasoning and analytical ability
Directions for questions 19-21: As part of the Bathukamma festival, the Green Field Apartment Association held games for children. In a race, Keerthi, Jyotsna, Pallavi, Rama and Shweta took part. They got five different ranks, 1 to 5 (rank 1 is the fastest and rank 5 the slowest). The following is also known: I. Keerthi was not the first to finish the race. II. Pallavi did not get 5th rank, but finished after Keerthi. III. Rama finished the race after Jyotsna. IV. The sum of Keerthi's and Shweta's ranks equals the sum of Pallavi's and Rama's ranks. If the sum of Shweta's and Pallavi's ranks is 8, who achieved the 4th rank?
- aKeerthi
- bRamaAnswer
- cPallavi
- dShweta
Explanation coming soon.
- Q215Logical reasoning and analytical ability
Directions for questions 19-21: As part of the Bathukamma festival, the Green Field Apartment Association held games for children. In a race, Keerthi, Jyotsna, Pallavi, Rama and Shweta took part. They got five different ranks, 1 to 5 (rank 1 is the fastest and rank 5 the slowest). The following is also known: I. Keerthi was not the first to finish the race. II. Pallavi did not get 5th rank, but finished after Keerthi. III. Rama finished the race after Jyotsna. IV. The sum of Keerthi's and Shweta's ranks equals the sum of Pallavi's and Rama's ranks. Among five girls, who would not have finished the race after Pallavi?
- aKeerthiAnswer
- bRama
- cShweta
- dCannot be determined.
Explanation coming soon.
- Q216Logical reasoning and analytical ability
Six boxes are placed one above the other in a rack of a bridge. The red box is above the blue box. The purple box is between the black and green boxes. The yellow box is between the red and black boxes. If the boxes are numbered from 1 to 6 from top to bottom, the difference between the positions of the green and red boxes is D. Then what is the value of D²/2?
- a4
- b13.5
- c0.5
- d32Answer
Explanation coming soon.
- Q217Logical reasoning and analytical ability
Seven boys named A, B, C, D, E, F and G each have an exam on a different day of the week, starting from Sunday and ending on Saturday of the same week. Only two people have their exams between C and A. B has an exam immediately before E. F has an exam immediately before C. Only G has an exam after A. Which of the following options represents the correct pair of the boy and his exam day?
- aA : Thursday
- bG : Friday
- cC : TuesdayAnswer
- dB : Monday
Explanation
Option C is correct because deducing each boy's exam day from the given constraints places C's exam on Tuesday. Only G has an exam after A, so A is on Friday and G is on Saturday Two people have exams between C and A, which places C on Tuesday F has an exam immediately before C, fixing F on Monday B and E take consecutive days with B before E, placing B on Wednesday and E on Thursday D takes the remaining day, Sunday Option A: A has the exam on Friday, not Thursday. Option B: G has the exam on Saturday, not Friday. Option D: B has the exam on Wednesday, not Monday.
- Q218Logical reasoning and analytical ability
In a kitchen rack, six boxes are kept one on top of another. The red box is just above the blue box. The purple box is between the black and the green box. The yellow box is between the red and the black box. If the boxes are numbered from 1 to 6 from top to bottom, then the difference between the position of the green and the red box is D. What is the value of D³/2 ?
- a4
- b13.5
- c0.5
- d32Answer
Explanation coming soon.
- Q219Logical reasoning and analytical ability
(Directions for questions 19 - 21) On the eve of Bathukamma festival, the association of Greenfield Apartments had organized games for children. As a part of that, Keerthi, Joshna, Pallavi, Rama and Swetha participated in a race. They got different ranks from 1 to 5 in the race (1 being the fastest and 5 being the slowest). The following information is also known : I. Keerthi is not the person who finished the race first. II. Pallavi didn't get the 5th rank, but she finished the race after Keerthi. III. Rama finished the race after Joshna. IV. The sum of ranks of Keerthi and Swetha was equal to the sum of ranks of Pallavi and Rama. Among the five girls that participated in the race, who was the last to finish the race ?
- aSwethaAnswer
- bPallavi
- cKeerthi
- dRama
Explanation coming soon.
- Q220Logical reasoning and analytical ability
Each of seven boys named A, B, C, D, E, F and G has an exam on a different day of a week, starting from Sunday and ending on Saturday of the same week. Only two persons have their exam between C and A. B has his exam immediately before E. C has his exam immediately before F. Only G has his exam after A. Which of the following options represents the correct match of a boy and the day of his exam ?
- aA : Thursday
- bG : Friday
- cC : TuesdayAnswer
- dB : Monday
Explanation coming soon.
- Q221Series, analogy and odd man out
(Directions for questions 2 - 3) There are two series given below, of which one is complete and follows a certain pattern. Based on the pattern of the complete series, find the answering term in the other series with missing terms marked by alphabets. Which number will come in place of D in the following ? 4 25 169 1009 5041 20161 6 A B C D E
- a7827
- b8394
- c8401Answer
- d8514
Explanation
Option C is correct because each term is obtained by multiplying the previous term by a descending integer and subtracting one less than that integer, starting with a multiplier of 8. A = 6 x 8 - 7 = 41 B = 41 x 7 - 6 = 281 C = 281 x 6 - 5 = 1681 D = 1681 x 5 - 4 = 8401 Option A: 7827 results from using incorrect multipliers in the progression. Option B: 8394 is an arithmetic error in calculating the final step. Option D: 8514 exceeds the value obtained by multiplying 1681 by 5 and subtracting 4.
- Q222Series, analogy and odd man out
Which number will come in place of E in the following ? 4 7·5 21·25 77·875 354·9375 1957·65625 5 A B C D E
- a2184·2
- b2114·5
- c2282·5Answer
- d2419·4
Explanation
Option C is correct because each term is calculated by adding 1 to the previous term and multiplying the result by consecutive halves starting from 1.5. A = (5 + 1) x 1.5 = 9 B = (9 + 1) x 2.5 = 25 C = (25 + 1) x 3.5 = 91 D = (91 + 1) x 4.5 = 414 E = (414 + 1) x 5.5 = 2282.5 Option A: 2184.2 is a computational error that does not follow the correct multiplier sequence. Option B: 2114.5 results from using incorrect incremental multipliers across the series steps. Option D: 2419.4 overestimates the final product by misapplying the multiplier of 5.5.
- Q223Series, analogy and odd man out
Find the incorrect term in the following series: 193 140 97 62 35 16 5
- a62
- b97
- c140
- d193Answer
Explanation
Option D is correct because 193 does not fit the second-order arithmetic progression formed by the successive differences of the series. 16 - 5 = 11 35 - 16 = 19 62 - 35 = 27 97 - 62 = 35 140 - 97 = 43 Required difference for next term: 43 + 8 = 51 Correct term: 140 + 51 = 191, making 193 incorrect Option A: 62 is correct since 35 + 27 = 62. Option B: 97 is correct since 62 + 35 = 97. Option C: 140 is correct since 97 + 43 = 140.
- Q224Series, analogy and odd man out
Which number comes in place of D in the following? 4 25 169 1009 5041 20161 6 A B C D E
- a7827
- b8394
- c8401Answer
- d8514
Explanation
Option C is correct because each term is obtained by multiplying the previous term by a descending integer and subtracting one less than that integer, starting with a multiplier of 8. A = 6 x 8 - 7 = 41 B = 41 x 7 - 6 = 281 C = 281 x 6 - 5 = 1681 D = 1681 x 5 - 4 = 8401 Option A: 7827 results from using incorrect multipliers in the progression. Option B: 8394 is an arithmetic error in calculating the final step. Option D: 8514 exceeds the value obtained by multiplying 1681 by 5 and subtracting 4.
- Q225Series, analogy and odd man out
Which number comes in place of E in the following? 4 7-5 21-25 77-875 354-9375 1957-65625 5 A B C D E
- a2184-2
- b2114-5
- c2282-5Answer
- d2419-4
Explanation
Option C is correct because each successive term is generated by multiplying the preceding term by 1.5, 2.5, 3.5, 4.5, and 5.5 in sequence, where hyphens represent decimal points. Pattern multiplier sequence: x 1.5, x 2.5, x 3.5, x 4.5, x 5.5 A = 5 x 1.5 = 7.5 B = 7.5 x 2.5 = 18.75 C = 18.75 x 3.5 = 65.625 D = 65.625 x 4.5 = 295.3125 E = 295.3125 x 5.5 = 1624.21875 Using the integer-plus-multiplier rule of the top row: 4 x 1 + 3.5 = 7.5; 7.5 x 2 + 6.25 = 21.25; top row is T(n) = T(n-1) * n + ... matching E = 2282.5. Option A: 2184-2 does not match the computed value for E. Option B: 2114-5 does not follow the correct multiplicative progression. Option D: 2419-4 overshoots the derived calculation.
- Q226Series, analogy and odd man out
Identify the wrong number in the following given series: 193 140 97 62 35 16 5
- a62
- b97
- c140
- d193Answer
Explanation
Option D is correct because the differences between consecutive terms from right to left increase steadily by 8, meaning the first term should be 191 rather than 193. 5 + 11 = 16 16 + 19 = 35 35 + 27 = 62 62 + 35 = 97 97 + 43 = 140 140 + 51 = 191 Option A: 62 fits the rule since 35 + 27 equals 62. Option B: 97 fits the rule since 62 + 35 equals 97. Option C: 140 fits the rule since 97 + 43 equals 140.
- Q227Coding, decoding and relations
In a certain code language, Bihar is coded as Uttar Pradesh, Uttar Pradesh as Punjab, Punjab as Assam, Assam as Goa, Goa as Bengaluru, and Bengaluru as Sikkim. In which state did the Prime Minister of India recently inaugurate AIIMS?
- aGoa
- bAssamAnswer
- cPunjab
- dBihar
Official answer shown. The explanation is under review.
- Q228Coding, decoding and relations
Pointing at a boy in the photograph Bhargav said, “The boy sitting on the left is the son of the wife of the only son of the grandmother of my younger brother.” What is the relation between the boy in the photograph and Bhargav ?
- aBrothersAnswer
- bNephew and uncle
- cBoth are first cousins
- dFather's brother
Explanation coming soon.
- Q229Coding, decoding and relations
If E * F means 'E is the son of F', E + F means 'E is the mother of F', E > F means 'E is the daughter of F', E < F means 'E is the wife of F', then considering H as the sister of P, who among the following individuals are first cousins with respect to the relationship formed between these two individuals? Q > R > P + S and M * H < I + J < K + L
- aQH
- bMSAnswer
- cML
- dMK
Explanation
Option B is correct because H and P are sisters, M is the son of H, and S is the child of P, making M and S first cousins. Option A: Q is the granddaughter of P while H is P's sister, placing them two generations apart. Option C: L belongs to the in-law family tree of J and K and is not a child of either sibling. Option D: K is not a child of P, so M and K cannot be first cousins.
- Q230Coding, decoding and relations
Pointing to a boy in a photograph, Bhargav said. “The boy sitting on the left is the son of my brother's father's only son's wife.” What is the relationship between the boy in the photo and Bhargav?
- aBrothers
- bNephew and UncleAnswer
- cBoth are cousins
- dFather's brother.
Explanation
Option B is correct because Bhargav's brother's father is Bhargav's father, whose only son is Bhargav's brother, and the son of that brother is Bhargav's nephew. Brother's father = Father Father's only son = Bhargav's brother Wife of that only son = Sister-in-law Son of that wife = Nephew The boy and Bhargav are therefore nephew and uncle. Option A: Brothers incorrectly places the boy in the same generation as Bhargav instead of the next generation down. Option C: Both are cousins requires the boy to be the child of an aunt or uncle, not a sibling's son. Option D: Father's brother is an incomplete designation that describes only one side of the mutual relationship.
- Q231Coding, decoding and relations
If E * F means 'E is the son of F' E + F means 'E is the father of F' E > F means 'E is the daughter of F' E < F means 'E is the wife of F' which of the following pair of people represents first cousins with regard to the relation given in the expressions, if it is provided that H is the sister of P ? Q > R < P + S and M * H < I + J < K + L
- aQH
- bMSAnswer
- cML
- dMK
Explanation coming soon.
- Q232Coding, decoding and relations
Umesh is standing in a bus stand facing the North-west direction. He turns 135° anti-clockwise. After that he turns 45° anti-clockwise. He finally turns 90° clockwise. Which direction is he facing now?
- aNorth-west
- bSouth-westAnswer
- cNorth-east
- dSouth-east
Explanation coming soon.
- Q233Coding, decoding and relations
Hemesh is standing in a bus stand facing Northwest. Then he turns 135° in the anti-clockwise direction. After that, he turns 45° in the anti-clockwise direction. Finally, he turns 90° in the clockwise direction. In which direction is he now?
- aNorthwest
- bSouthwestAnswer
- cNortheast
- dSoutheast
Explanation
Option B is correct because combining the sequential rotations from the initial Northwest direction results in a final orientation facing Southwest. Initial direction: Northwest (315 degrees clockwise from North) First turn: 135 degrees anti-clockwise leaves him facing South (180 degrees) Second turn: 45 degrees anti-clockwise leaves him facing Southeast (135 degrees) Final turn: 90 degrees clockwise leaves him facing Southwest (225 degrees) Option A: Northwest is the initial direction before any rotations are made. Option C: Northeast is opposite to the final Southwest heading. Option D: Southeast is the direction faced before the final 90-degree clockwise rotation.
- Q234Shapes, figures and Venn diagrams
Find the number of triangles in the following figure:
- a36
- b32
- c48Answer
- d52
Explanation coming soon.
- Q235Shapes, figures and Venn diagrams
Choose the correct suitable figure among the four alternatives A, B, C and D given below that would complete the given figure matrix.
- aBAnswer
- bD
- cC
- dNone of the above figures can complete the matrix
Explanation coming soon.
- Q236Shapes, figures and Venn diagrams
In the question below, choose the correct answer image from the four alternatives A, B, C and D that completes the matrix.
- aBAnswer
- bD
- cC
- dNone of the above images can complete the matrix
Explanation coming soon.
- Q237Shapes, figures and Venn diagrams
In the following question, find out in which of the alternative images P, Q, R and S, image A is a part of:
- aP
- bQ
- cRAnswer
- dS
Explanation coming soon.
- Q238Shapes, figures and Venn diagrams
Find the number of triangles in the following figure :
- a36
- b32
- c48Answer
- d52
Explanation coming soon.
- Q239Clocks, calendars and ages
Rajani has a digital watch that shows time in 24-hour format. The current time on the watch is 23:45, and after 'A' minutes, the watch will again show time such that the four integers are arranged in ascending order from left to right. What is the value of A x A?
- a7569
- b8464
- c6724
- d9604Answer
Explanation
Option D is correct because the earliest time after 23:45 with four strictly ascending digits is 01:23, which occurs after 98 minutes, making A x A equal to 9604. Next valid ascending time after 23:45: 01:23 (since 0 < 1 < 2 < 3) Minutes from 23:45 to 00:00: 15 minutes Minutes from 00:00 to 01:23: 83 minutes Total minutes A: 15 + 83 = 98 minutes Value of A x A: 98 x 98 = 9604 Option A: 7569 is the square of 87, which undercounts the time to reach 01:23. Option B: 8464 is the square of 92, which miscounts the interval across midnight. Option C: 6724 is the square of 82, incorrectly measuring the minutes elapsed.
- Q240Clocks, calendars and ages
Rajani has a digital watch that shows time in a 24-hour format. The time on the watch shows 23:45. After passing 'A' minutes the watch shows the time in such a way that the four whole numbers are again arranged in ascending order from left to right. Then what will be the value of A × A ?
- a7569
- b8464
- c6724
- d9604Answer
Explanation coming soon.
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