Mensurationmedium · Past Paper
If the radius of a sphere is increased by 10%, what is the percentage increase in its volume?
A30%
B33.1%
C10%
D21%
✓ Correct Answer: B — 33.1%
New radius = 1.1r. New volume = (1.1)³V = 1.331V. Increase = 33.1%.
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