50 men took a dip in a water tank 30 m long and 20 m broad on a religious day. If the average displacement of water by a man is 4m3 , then the rise in the water level in the tank will be:	Pick one
A) 20 cm	B) 25 cm	C) 33.3 cm	D) 50 cm	E) None of these
Explanation:   Total volume of water displaced =(4 x 50) m3 = 200 m3   Rise in water level = 200/30Ã—20= 0.333m = 33.3cm   Answer: 33.3 cm
<result>C</result>
50 men took a dip in a water tank 30 m long and 20 m broad on a religious day. If the average displacement of water by a man is 4m3 , then the rise in the water level in the tank will be: