New Enroll in RBI Grade B New Batch - Starts on May 21

Question

The ratio of the speed of the stream to the speed of the

boat in still water is 3:7. If a distance of 280 km is covered downstream in 4 hours, determine the time required to cover the same distance upstream.

A 10 hours

B 8 hours

C 9 hours

D 11 hours

E 12 hours

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