A man can row 6 km/h in still water. If the speed of the current is 2 km/h, it takes him 3 hours to row to a place and back. How far is the place? MCQ with Answer and Explanation

Explanation:
Distance = 3.3 km = 3300 meters. Time taken = 3300 / 330 = 10 seconds.

Explanation:
Let total distance be 100 km. First section = 40 km; Time = 40 / 20 = 2 hours. Second section = 60 km; Time = 60 / 30 = 2 hours. Total time = 4 hours. Average speed = 100 / 4 = 25 km/h.

Explanation:
Ratio of times is the inverse of the ratio of speeds: 1/2 : 1/3 : 1/4. Multiplying by the LCM (12), we get 6 : 4 : 3.