A boat can move upstream at 25 kmph and downstream at 35 kmph, then the speed of the current is_________?
Q1. A boat can move upstream at 25 kmph and downstream at 35 kmph, then the speed of the current is_________?
Answer: 5 kmph
Explanation: Stream speed = (downstream − upstream) / 2 = (35 − 25) / 2 = 5 kmph.