Two persons P and Q started a 300 meter race. Initially the speeds of P and Q are in the ratio 1 : 2. After 't' seconds, P quadrupled (four times) his speed and as a result, both of them reached the endpoint at same instant of time. But after 't' seconds, if P tripled his speed and Q reduced his speed by 5 seconds, then the race would have been won by 5 seconds. What is the value of 't'?
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Time and work, speed, interest, analytical reasoning7 questions
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Most tested: Applied quantitative reasoning through relative speed/time-work and basic deduction puzzles.
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