Question

500 men took dip in a tank which is 80 m long , 50 m broad. What is the rise in Water level if the average displacement of water displaced by man is 4 m³m​

Answer 1

Level of water in the tank = h

The amount of water rises in the tank = Displacement of water taken by 500 persons

So, 80 x 50 x h = 500 x 4

4000h = 2000

h = 2000/4000m

h = 1/2m = 100/2cm = 50cm

50 x 10mm = 500mm

Thus, the rise of level of water in the tank is 500mm.

:)