Login / Signup

Question

Speed of a boat in still water to speed of boat in upstream is 7:5. If the boat can travel 360 km in downstream in 5 hours, then find the time taken by the boat to cover 28 km in still water.

A 30 minutes

B 20 minutes

C 15 minutes

D 18 minutes

E None of these

Practice Next

More Boats and streams Questions

The downstream speed of a boat is 8 km/hr more than its upstream speed and the ratio of the speed of the boat in still water to the speed of the stream is ...
A boy can swim in water with a speed of 12 km/hr in still water. If the speed of the stream is 5 km/hr, what will be the time taken by the boy to cover 68 ...
A man rows a boat a certain distance downstream in 9 hours, while it takes 18 hours to row the same distance upstream. How many hours will it take him to r...
A motorboat covers a certain distance downstream in a river in 3 hours. It covers the same distance upstream in 3 and a half an hour. If the speed of the w...
A boy can swim a certain distance downstream in 2 hours and return in 5 hours. If the rate of stream is 3 kmph then what is the speed of boy in still water...
The speed of a boat in still water is 28 km/hr. If the boat covers 140 km in upstream in 7 hours, then find the time taken by the boat to travel 144 km in ...
The speed of a boat in still water is 15 km/h and the speed of the stream is 3 km/h. Find the time taken to travel 54 km downstream.
A man can row 32 km/hr in still water. It takes him thrice as long to row up as to row down the river. Find the rate of the current.    
The speed of a boat is that of the current of water is 30:7. The boat goes along with the current in 4 hours 12 minutes. It will come back in
The ratio of the boat's speed in still water to the speed of the stream is 10:2. The boat takes time in the ratio 11:15 to travel (d − 70) km upstream and ...

Relevant for Exams:

Hey! Ask a query

ask-question