1.

The speed of a boat in still water is 11 km/h. It can go 12 km upstream and return downstream to the engine point in 2 h 45 min. What is the speed of stream?

A. 4 km/h
B. 2 km/h
C. 5 km/h
D. 3 km/h
Answer» D. 3 km/h


Discussion

No Comment Found