Mensuration prob #2

In a swimming pool measuring 90m by 40m, 150 men take a dip. If the average displacement of water by a man is 8 cubic metres, what will be the rise in water level?

Solution and explanation pls?

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sunnyjohn: Master | Next Rank: 500 Posts; Posts: 344; Joined: Mon Sep 14, 2009 5:40 am; Thanked: 28 times; Followed by:3 members; GMAT Score:700

by sunnyjohn » Tue Oct 06, 2009 11:12 pm

total volume displaced by men = 150 * 8 = 1200 m^3

so height = 1200/90*40 ==> 1/3 meter.

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