Question

A boat can cover 90 km upstream and 225 km downstream in 15 hours. Speed of the stream is how much less than the speed of the boat in still water if the boat can cover 72 km upstream and 180 km downstream in 12 hours?

A 20 km/h
B 16 km/h
C 18 km/h
D 15 km/h
E None of these
Practice Next

More Boats and streams Questions

Hey! Ask a query