Question
If the height of a cylinder becomes triple and radius
is decreased by 20%, then what is the percentage change in its volume?Solution
ATQ, Volume of cylinder = πr²h Height = 1 : 3 Radius = 5 : 4 Ratio = 25 : 48 Change = 48 × 100 / 25 = 192% Since > 100, increase = 92%
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