If the time taken by boat to travel upstream on Sunday is 2 hours more than the time takeb by it to travel downstream on Thursday and the speed of boat in still water on Thursday is 17 kmph, then find the upstream speed of boat on Sunday ?

Options

A. 27 kmph
B. 22 kmph
C. 20 kmph
D. 25 kmph

Answer

A

Explanation

Accroding to question.
`(18xx18)/(x-4)=2+(12xx15)/(17+1)`
`18xx18=12(x-4)`
`x-4=27`
`x=31` kmph
Required upstrem speed `=31-4=27` kmph