A boat cover 11 2 km distance in downstream in 48 minutes If ratio between speed of boat in still wa...........

Quantitative Aptitude (Insurance) Boats and Streams

A boat cover 11.2 km distance in downstream in 48 minutes. If ratio between speed of boat in still water to speed of stream is 3 : 1, then find in what time boat will cover 42 km of distance in downstream and in upstream?

7 hours