Question

A river is flowing at the rate of 2.4 km/hr.How much water will fall into the sea in a minute if depth of river is 5m and width is 10m?

Answer 1

Answer:

Firstly Convert 2.4km/hr into meter/minute.

Step-by-step explanation:

That 2.4km =2400 meter & 1hr = 60 min.

Then , lenght = 2400/60 = 40 meter .

volume of water fall in River = lenght*breadth*height

length = 40m

breadth = 10m

height = 5m

volume = length * breadth * height

volume =40 * 10 * 5

then , volume = 400 * 5

,volume = 2000 m3

Answer 2

Answer:

The volume of water fall into the sea is 2000 m³.

Step-by-step explanation:

Given : A river is flowing at the rate of 2.4 km/hr.

To find : How much water will fall into the sea in a minute if depth of river is 5 m and width is 10 m?

Solution :

A river is flowing at the rate of 2.4 km/hr.

i.e. water flow is 2.4 km=2400 meter in 1 hour.

The length of the river is $\frac{2400}{60}=40$

The breadth is 10 m and height is 5 m.

The volume of the water fall in river is

$V=l\times b\times h$

$V=40\times 10\times 5$

$V=2000\ m^3$

The volume of water fall into the sea is 2000 m³.