Question

A river 3 m deep and 40 m wide is flowing at the rate of 2 km per hour . How much water
will fall into the sea in a minute?​

Answer 1

Given :

• Height of river is 3 m .
• Width of river is 40 m
• Rate of flow is 2 km/h .

To Find :

• How much Water will fall into the sea in a minute .

Solution :

$\longmapsto\tt{Height=3\:m}$

$\longmapsto\tt{Width=40\:m}$

$\longmapsto\tt{Length=2\:km = 2000\:m}$

As we know that :

$\longmapsto\tt{1\:min.=60\:sec.}$

Now ,

$\longmapsto\tt{Volume\:of\:Water=\dfrac{200{\not{0}}\times{40}\times{{\not{3}}}}{{\not{6}}{\not{0}}}}$

$\longmapsto\tt{\cancel\dfrac{8000}{2}}$

$\longmapsto\tt\bf{4000\:{m}^{3}}$

In litres :

$\longmapsto\tt{4000\times{1000}}$

$\longmapsto\tt\bf{4000000\:l}$

So, in 1 minute, 4000000 l of water will fall ..

_______________________

• Volume of Cuboid = l × b × h
• C.S.A of Cuboid = 2h(l+b)
• T.S.A of Cuboid = 2(lb+bh+hl)
• Volume of Cube = a³
• C.S.A of Cube = 4a²
• T.S.A of Cube = 6a²

Here :

• a = side of cube
• l = length
• b = breadth
• h = height

_______________________

Answer 2

Answer:

$\huge\underbrace\mathcal\blue{Question}$...

A river 3 m deep and 40 m wide is flowing at the rate of 2 km per hour. How much water will fall into the sea in a minute?

$\huge\underbrace\mathcal\purple{ANSWER}$...

Please refer to above attachment.!!!