1. A rectangular swimming pool of length 30 m and breadth 15 m has a uniformly sloping floor. It is 1 m in depth on one end of its length and 2 m at the other. How much water is needed to completely fill this pool?
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By: anil on 05 May 2019 02.14 am
The pool is 1 m in depth on one end of its length and 2 m at the other, thus the pool is in the shape of a trapezium whose volume will be equal to the product of area of trapezium and the width. Length = 30 m and breadth = 15 m => Volume = $$(frac{1}{2} imes (1+2) imes 30) imes 15$$ = $$45 imes 15 = 675$$ $$m^3$$ => Ans - (C)
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