The length, breadth and height of a cuboidal reservoir is 7 m, 9 m and 15 m respectively. 81400 L of water is pumped out from the reservoir. Find the decrease in the water level in the reservoir in litres.
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Water pumped out 8400 litre = 8400/ 1000 = 8.4 cubic meter
Surface area of tank =LxB = 7m x 6m = 42 sq mtr
Therefore decrease in level = 8.4 / 42 = 0.2 mtr
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Step-by-step explanation:
area of reservoir=l*b*h
=7*9*15
=945m^3
1m^3=1000L
945*1000=945000L
945000L-81400L
=863600L
Hope it helps........
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