Quantitative Aptitude Ques 1700

Question: 50 men took a dip in a water tank, 40 m long and 20 m broad on Amavasya. If the average displacement of water by a man is $ 4m^{3}, $ then the rise in the water level in the tank will be

Options:

A) 35 cm

B) 50 cm

C) 20 cm

D) 25 cm

Show Answer

Answer:

Correct Answer: D

Solution:

  • Average displacement of water by 50 men $ =200m^{3} $ Let rise in the water level be h.

$ \therefore $ $ 40\times 20\times h=200 $

$ \Rightarrow $ $ h=\frac{200}{40\times 20}=0.25m $

$ \Rightarrow $ $ h=25cm $