-
A metallic sphere of radius 10.5 cm is melted and then recast into small cones each of radius 3.5 cm and height 3 cm. The number of cones thus formed is
-
- 140
- 132
- 112
- 126
- 140
Correct Option: D
| Volume of sphere = | π (10.5)³ cu.cm. | |
| 3 |
| Volume of cone = | π (3.5)³ × 3 cu.cm. | |
| 3 |
| ∴ Number of cones = | π × (10.5)³ | = 126 | |
| 3 | |||
| π × (3.5)² × 3 | |||
| 3 | |||
