A boat travels from point X X X to point Y Y Y downstream and returns from Y Y Y to X X X upstream in a total time of $5$ hours. The speed of the curr...

Question

A boat travels from point XX to point YY downstream and returns from YY to XX upstream in a total time of $5$ hours. The speed of the current is 4extkm/hr4 ext{ km/hr}. What is the speed of the boat in still water (in km/hr)?

Options

A.

$16$

B.

$25$

C.

$40$

D.

Can’t be determined

E.

None of these

boat and streamspeedtimecurrent speedupstreamdownstream

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