Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Speed Time and Distance Boat and River
A man can row 18 km upstream and 42 km downstream in 6 hours. Also he can row 30 km upstream and 28 km downstream in 7 hours. Find the speed of the man in still water.
1
8 km/h
2
10 km/h
3
4 km/h
4
More than one of the above
5
None of the above