List of top Quantitative Aptitude Questions on Boat and Stream

A boat can row upstream at 10 km/h and downstream at 18 km/h. If m is the speed of boat in still water and n is the speed of stream then m+n is:

A motor boat goes 48 km downstream and comes back to the starting point in 16 hours. If the speed of the stream is 4 km/hr, then the speed of the motor boat in still water is:

A boat goes upstream at $\frac b2 km/hr$ and downstream at $\frac a2 km/hr$.The speed of boat in still water in km/hr is :

What is the speed of the boat in still water?
I. The boat running downstream takes 8 hours from P to Q
II. The boat running upstream takes 10 hours from Q to S.
The necessary statements to answer the question is/are

A boat takes 2 hours to travel downstream a river from port A to port B, and 3 hours to return to port A. Another boat takes a total of 6 hours to travel from port B to port A and return to port B . If the speeds of the boats and the river are constant, then the time, in hours, taken by the slower boat to travel from port A to port B is

Sakthi rows a boat at 4 km upstream in 1 hour and 1 km downstream in 20 minutes. How long will he take to reach

The speed of a boat in upstream is 2/3 that of downstream. Find the ratio of speed of boat in still water and to t and upstream.

A boat can travel with a speed of 9 km/hr in still water. If the speed of the stream is 3 km/hr, then what time does it take to travel 30 km downstream?

A boat running downstream covers 24 km in 4 hours, while it takes 6 hours for covering the same distance upstream. What is the speed of the boat in still water?

A motor boat covers a certain distance downstream in 30 minutes, while it comes back in 45 minutes. If the speed of the stream is 5 kmph what is the speed of the boat in still water?

A boat which can travel at 10km/hr in still water goes 91km down a river and returns to the starting point in 20 hours. Find the speed of the flow of the river.