Question

The capacity of a water tank is 1000 litres. It was 65% full of water. Some water taken out from the tank and it found that the tank is now 48% full of water. Find the volume of water taken out.​

Answer 1

Answer:

Solution :

The values of the cylinder having 1000 litres capacity is 1 m3.

Find the area of the cross section and the height of the cylinder.

If 120 litres of water is pumped into the cylinder for every one minute, then the level of water rises up by the rate of 1201000m.

Will the C.G. of the water tank rise by 1201000 m in one minute?

Now, find the change in C.G. of the water tank in one second by dividing (2) by 60 seconds.

Step-by-step explanation:

Answer 2

Answer:

{ According to question }

The capacity of a water tank is 1000 litres.

It was 65% full of water.

After some water taken out from the tank and it found that the tank is now 48% full of water.

Let, 100 % mean's 1000 liter water.

To find water in 65 % { we use percentage method }

Let, X liter water in 65 % .

Now,

From ( 2 ) & ( 3 )

To find loss of water percent

Loss of water percent = { 65 - 48 } %

Loss of water percent = 17 %

Let, Y be the water of 17 %

Now,

Subtract value of Y from value of X to get 48 % water

=> 48 % water = X - Y

=> 48 % water = 650 - 110.5

=> 48 % water = 539.5 liter

Hence, 539.5 liter water remain in tank and 110.5 liter water taken out from tank.

To find volume of 110.5 liter water

Hence, 110.5 × 10^ -3 m³ water taken out from tank.

Step-by-step explanation: