Category: Boat and Stream

Boat and Stream questions in CUET exam involve calculating the speed and time taken for travel by a boat in downstream and upstream. These questions involve effect of river current on a boat’s speed. Boat’s speed in still water and stream is calculated by formulas as given below:

If the speed of a boat in still water is 𝑥  km/h and speed of the stream is y km/h, then

(1) Speed downstream

= (𝑥 + y) km/h

(2) Speed upstream

= (𝑥 – y) km/h

(3) Speed of boat in still water,

𝑥= 1/2 (Downstream Speed + Upstream Speed)

(4) Speed of stream,

y= 1/2 (Downstream Speed – Upstream Speed)

Stream means speed of the moving water of a river.

In Still water the speed of water of a river is zero.

Downstream means moving of water and boat in the same direction.

Upstream means moving of water of a river and boat in opposite direction.