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If the radius of a cylinder is decreased by 20 and...

This question belongs to Arithmetic Ability Percentage
Percentage
?

If the radius of a cylinder is decreased by 20% and the height is increased by 20% to form a new cylinder, then the volume will be decreased by:

Answer & Solution
Correct Answer: Option A
Radius = 5 : 4
Height = 5 : 6
Volume = 52 × 5 : 42 × 6
          Percentage mcq question image
Decrease % = $$\frac{{29}}{{125}}$$ × 100 = 2.23%
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