A man can row his boat with the stream at 6 km/h and against the stream in 4 km/h. The man's rate is________?
Q1. A man can row his boat with the stream at 6 km/h and against the stream in 4 km/h. The man's rate is________?
Answer: 5 kmph
Explanation: Speed in still water = (speed with stream + speed against stream) / 2 = (6 + 4) / 2 = 5 kmph.