Question
A man takes 5 hours 45 min. in walking to a certain place and riding back . he would have gained 2 hours by riding both ways.The time he would take to walk both ways, is:
Answer: Option C
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Let the distance be `x` km. Then
(Time taken to walk `x` km) + (ime taken to ride `x` km) = `23/4` hrs.
`rArr ` (time taken to walk 2`x` km) + (Time taken o ride 2`x` km) = `23/2` hrs.
But , ime taken to ride 2`x` km = `15/4` hrs
`:.` Time taken to walk 2`x` km = `(23/2 - 15/4)`hrs = `31/4` hrs = 7 hrs 45 min.
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