Question
In covering a certain distance ,the speeds of A and B are in the ratio of 3 : 4 . A takes 30 minutes more than B to reach the destination . The time taken by A to reach the destination is :
Answer: Option C
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Ratio of speeds = 3 : 4 Ratio of times taken = 4 : 3
Suppose A takes 4`x` hrs and B takes 3`x` hrs to reach the destination. Then ,
`4x - 3x = 30/60 = 1/2 or x = 1/2`
`:.` ime taken by A = 4`x` hrs.= `(4 xx 1/2)`hrs = 2 hrs.
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