engineering recuitment Cochin Shipyard Executive Trainee Mechanical Mock Test Quantitative Aptitude Speed Time and Distance Boat and River
A boat goes 24 km upstream and 28 km downstream, in 6 h. It goes 30 km upstream and 21 km downstream in 6 h and 30 min. The speed of the boat in still water, is
1
8 km/h
2
9 km/h
3
12 km/h
4
10 km/h