Question

The ratio between the rates of walking of A and B is . If the time taken by B to cover a distance is minutes, find the time taken by A to cover the same distance.

A

12 minutes

B

24 minutes

C

36 minutes

D

48 minutes

Medium

Solution

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Correct option is
C

36 minutes

Ratio of the speeds of A and B 2 : 3.
Let the speed of  km/min 
Hence the speed of  km/min  
B takes 24 minutes to cover some distance. 
Hence,  
For A, 
  
Hence, the time taken by A to cover the same distance is 36 minutes.

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