The speeds of three cars are in the ratio of 2 : 3 : 5 Find the ratio of the time taken by the above cars to travel the same distance.


A) 15:10:6

B) 6:10:15

C) 10:15:06

D) 10:06:15

Correct Answer:
A) 15:10:6

Description for Correct answer:
We know that speed and time inversely proportional.

Ratio of time taken

\( \Large = \frac{1}{2} : \frac{1}{3} : \frac{1}{5} = \frac{30}{2} : \frac{30}{3} : \frac{30}{5} \)

[LCM of 2, 3, 5 = 30] = 15 : 10 : 6

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