Boats and Streams Worksheet-1

Boats and Streams Worksheet-1

In one hour, a boat goes 11 km along the stream and 5 km against the stream. The speed of the boat in still water (in km/hr) is :

(a) 3 (b) 5 (c) 8 (d) 9

A man can row upstream at 8 kmph and downstream at 13 kmph. The speed of the stream is:

(a) 2.5 km/hr (b) 4.2 km/hr

A man rows downstream 32 km and 14 km upstream. If he takes 6 hours to cover each distance, then the velocity (in kmph) of the current is:

(a) (b) 1 (c) (d) 2

A boat running downstream covers a distance of 16 km in 2 hours while for covering the same distance upstream, it takes 4 hours. What is the speed of the boat in still water ?

(a) 4 km/hr (b) 6 km/hr

A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will it take to go 5 km in stationary water?

(a) 40 minutes (b) 1 hour

A man can row three-quarters of a kilometre against the stream in minutes return in minutes. The speed (in km / hr) of the man in still water is:

(a) 2 (b) 3 (c) 4 (d) 5

A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat (in still water) and the stream is:

(a) 2 : 1 (b) 3 : 1 (c) 3 : 2 (d) 4 : 3

A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and speed of the water current respectively?

(a) 2 : 1 (b) 3 : 2

(e) None of these

If a boat goes 7 km upstream in 42 minutes and the speed of the stream is 3 kmph, then the speed of the boat in still water is:

(a) 4.2 km/hr (b) 9 km/hr (c) 13 km/hr (d) 21 km/hr

A man's speed with the current is 15 km / hr and the speed of the current is 2.5 km/hr. The man's speed against the current is:

(a) 8.5 km/hr (b) 9 km/hr (c) 10 km/hr (d) 12.5 km/hr

Answer Key:

(1)-c; (2)-a; (3)-c; (4)-b; (5)-c; (6)-d; (7)-b; (8)-c; (9)-c; (10)-c