The speeds of three cars are in the ratio 5 : 4 : 6. The ratio of the times taken by them to travel the…
The ratio of times is 12 : 15 : 10. For a fixed distance, time is inversely proportional to speed, so the times are in the ratio \(\frac{1}{5} : \frac{1}{4} : \frac{1}{6}\).…
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The speeds of three cars are in the ratio 5 : 4 : 6. The ratio of the times taken by them to travel the same distance is:
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Correct answer D
The ratio of times is 12 : 15 : 10. For a fixed distance, time is inversely proportional to speed, so the times are in the ratio . Multiplying each term by 60 gives 12 : 15 : 10. The other ratios do not make the slowest car (speed 4) take the longest time and the fastest car (speed 6) the shortest.
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Common Management Admission Test (CMAT)