Question
The length is decreased by 18%, the breadth is decreased by 12% and the height is increased by 50%. Calculate the percentage change in the volume of the cuboid.
Solution
ATQ, Let initial dimensions be l, b, h. Initial volume = lbh cubic units New volume = 0.82l × 0.88b × 1.5h = 1.0824lbh Required percentage change = {(1.0824lbh – lbh)/lbh} × 100 = 8.24%
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