A boat goes 6 km in an hour in still water. It takes thrice as much time in covering the same distance against the current. Speed of the current is_______?
Q1. A boat goes 6 km in an hour in still water. It takes thrice as much time in covering the same distance against the current. Speed of the current is_______?
Answer: 4km/hr
Explanation: Taking 3 times as long upstream means upstream speed = 6/3 = 2 km/h; current = 6 − 2 = 4 km/h.