Question

Question 3. The speed of a boat in still water is 5km/hr. If the speed of the boat against the stream is 3 km/hr, what is the speed of the stream? O A - 1.5 km/h B-2 km/hr OC - 2.5 km/hr D - 1 km/hr
​

Answer 1

Answer:

B )2 KM /hr

hope it's helpful to you

mark me brilliant plz

Answer 2

Given:

The speed of a boat in still water=5km/hr

The speed of the boat against the stream=3 km/hr

To find:

The speed of the stream

Solution:

The speed of the stream is 2km/hr. (Option B)

We can find the speed by following the given steps-

We know that when a boat is going against the stream, it is going upstream.

So, the upstream speed is the difference between the speed of the boat and the speed of the stream.

Upstream speed= 3km/hr

Speed of the boat in still water=5km/hr

We can calculate the speed of the stream by using these values.

Upstream speed= Speed of the boat - speed of the stream

On putting the given values, we get

3=5- speed of the stream.

The speed of the stream=5-3

=2km/hr

Therefore, the speed of the stream is 2km/hr.