In a swimming pool measuring 80 m × 60 m, 120 men take a dip. If the average displacement of water by a man is 6 m3, then the rise in water level is –
Answer & explanation
Correct answer: option 3
h = height of water level which is raised by 120 men.
Volume of water displaced = Displacement of water done by 120 men
80 × 60 × h = 120 × 6
4800 × h = 720
$h=\frac{720}{4800}=0.15 m$