# 500 persons took a dip in a rectangular tank which is 80m long and 50m broad . What is the rise in level of water in the tank , if the average displacement of water by a person is 0.04m³

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by SweetRohan

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by SweetRohan

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The volume of one person = 0.04 m³ , be cause when the person takes a dip in the tank, the amount of water displaced is equal to the volume of the person.

500 people take dip at the same time, then water displaced = 500 * 0.04 = 20 m³

the water rises inside the tank of the area of 80 m * 50 m = 4000 m².

The height to which water rises = volume / area = 20/ 4000 = 1/200 m =0.005 m

= 5 millimeters

500 people take dip at the same time, then water displaced = 500 * 0.04 = 20 m³

the water rises inside the tank of the area of 80 m * 50 m = 4000 m².

The height to which water rises = volume / area = 20/ 4000 = 1/200 m =0.005 m

= 5 millimeters