A man can row at 7 km/hour in still water. He finds that it takes twice the time to row upstream than the time to row downstream. The speed of the stream is
1
2.6 km/hour
2
7 km/hour
3
2.3 km/hour
4
4 km/hour
A man can row at 7 km/hour in still water. He finds that it takes twice the time to row upstream than the time to row downstream. The speed of the stream is