Q. If the radius of a cone is reduced by 20% and its height is increased by 25%, the volume of the cone becomes:

  • (A) 80% of the original
  • (B) 90% of the original
  • (C) 100% of the original
  • (D) 120% of the original
✅ Correct Answer: (A) 80% of the original
Explanation: Volume factor = (0.8)²×1.25 = 0.64×1.25 = 0.80.

Published by Krishna Sharma ⭐ 48.52K Points at 15-Jul-2026 07:13 am in Math

Explanation by: Krishna Sharma
Volume factor = (0.8)²×1.25 = 0.64×1.25 = 0.80.

📝 Notes by Other Students/ Teachers

📊 Question Analytics

👁️
12
Total Visits
📽️
22 d ago
Published
🎖️
Krishna Sharma
Publisher
📈
85%
Success Rate