50 men took a dip in a water tank 40 m long and 20 m broad on a religious day. If the average displacement of water by a man is 4 , then the rise in the water level in the tank will be:
Select:
A) 22
B) 25
C) 32
D) 99
E) 88
Explanation:   Total volume of water displaced =(4 x 50) = 200   Rise in water level = =0.25m = 25cm   Answer: 25) 25 cm
<result>B</result>
50 men took a dip in a water tank 40 m long and 20 m broad on a religious day. If the average displacement of water by a man is 4 , then the rise in the water level in the tank will be: