Boats and Streams - Questions and Answers

11. The current of a stream runs at the rate of 4 km an hour. A boat goes 6 km and back to the starting point in 2 hours. The speed of the boat in still water is :

12. A man can row downstream at 14 km/hr and upstream at 9 km/hr. Man?s rate in still water is :

13. A boat goes 40 km upstream in 8 hours and 36 km downstream in 6 hours. The speed of the boat in standing water is :

14. The speed upstream be 1 km/hr, then speed of the stream is :

15. If a man�s rate with the current is 12 km/hr and the rate of the current is 1.5 km/hr, then man�s rate against the current is :