Question

Upstream speed of a boat is 22 km/h. Time taken by boat to cover 144 km downstream is 1 hour more than that taken by it to cover 77 km upstream. Speed of a ship is 9 km/h more than that of the boat. Find the time taken (in minutes) by ship to cover 162 km in still water.

A 210
B 300
C 270
D 240
E None of these
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