Q. The edge of a cube is increased by 20%. The percentage increase in its volume is:
✅ Correct Answer: (B)
72.8%
Explanation: New volume = (1.2)³ = 1.728. Increase = 72.8%.
Explanation by: Mahesh Chandra
New volume = (1.2)³ = 1.728. Increase = 72.8%.