Q. The radius of a cylinder is increased by 20% while its height remains unchanged. The percentage increase in its volume is:
✅ Correct Answer: (C)
44%
Explanation: Volume ∝ r². New volume = (1.2)² = 1.44 times. Increase = 44%.
Explanation by: Mahesh Chandra
Volume ∝ r². New volume = (1.2)² = 1.44 times. Increase = 44%.