The length and breadth of a cuboid is increased by 20% and 25%, respectively, while its height is reduced by 30%. What must be the total percentage increase/decrease in the volume of the cuboid?
Answer & explanation
Correct answer: option 1
Before After
Length increased 20% = 5 6
Breadth increased 25% = 4 5
Height reduced 30% = 10 7
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Volume 200 210
Volume increased% = \(\frac{10}{200}\) × 100 = 5%