18. 500 men took dip in a tank which is 80 m long, 50 m broad. What is

1.	18. 500 men took dip in a tank which is 80 m long, 50 m broad. What is the rise in water level if thedisplacement of water by a man is 4 m[Hint. Volume of waler displaced by 500 men (4x 500)-2000 mArea of the tank = 80 x 50-4000 m2, let the rise in the level ofwater-h metres. Then 4000x h-20001
Answer» Level of water in the tank = hNow.,The amount of water rises in the tank = displacement of water taken by 500persons. 8050h = 50044000h = 2000H = 2000/4000 m1/2m = 100/2cm = 50cm 5010mm = 500mmThus,the rise of level of water in the tank is 500mm Level of water in the tank = hNow.,The amount of water rises in the tank = displacement of water taken by 500persons. 8050h = 50044000h = 2000H = 2000/4000 m1/2m = 100/2cm = 50cm 5010mm = 500mmThus,the rise of level of water in the tank is 500mm

18. 500 men took dip in a tank which is 80 m long, 50 m broad. What is the rise in water level if thedisplacement of water by a man is 4 m[Hint. Volume of waler displaced by 500 men (4x 500)-2000 mArea of the tank = 80 x 50-4000 m2, let the rise in the level ofwater-h metres. Then 4000x h-20001

Answer»

Level of water in the tank = hNow.,The amount of water rises in the tank = displacement of water taken by 500persons.

80*50*h = 500*44000h = 2000H = 2000/4000 m1/2m = 100/2cm = 50cm

50*10mm = 500mmThus,the rise of level of water in the tank is 500mm

Level of water in the tank = hNow.,The amount of water rises in the tank = displacement of water taken by 500persons.

80*50*h = 500*44000h = 2000H = 2000/4000 m1/2m = 100/2cm = 50cm

50*10mm = 500mmThus,the rise of level of water in the tank is 500mm