A residential housing is built in 4000 sq.m area.It has an underground tank to collect the rain water, the length, breadth and height of which are 50 m, 40 m and 4 m respectively.If it rains at the rate of 2 mm per minute for five hours,then calculate the depth of the water in the tank.What value is depicted in this problem?

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2015-04-06T11:54:15+05:30

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Area over which rain water is collected = 4000 sq meters
Raining rate = 2 mm /minute  for  5 hours
Water collected = 2 mm * 5 * 60 = 600 mm = 0.6 meters

volume of water collected = 4, 000 * 0.6 = 240 cubic meters.

base area of the tank underground = 50 m * 40 m = 2, 000 sq meters
Height of the water collected in the tank = 240 / 2000 = 0.12 meters




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