engineering recuitment UPCL AE (E&M) 2021 Mock Test Quantitative Aptitude Speed Time and Distance Boat and River
A man can row 5 quarters of a kilometer against the stream in 840 seconds and down the stream in 600 seconds. Find the speed of man in still water.
1
7 km/hr
2
45/7 km/hr
3
54/7 km/hr
4
5 km/hr