Question

the radius of the solid metallic sphere is 10 cm It is melted and recast into small cones of side 10 cm and base radii 5cm find the number of the confirm​

Answer 1

volume of sphere=n (volume of cone)

$\frac{4}{3} \pi {r}^{3} = n( \frac{1}{3} \pi {r}^{2} h) \\ \frac{4}{3} \times \frac{22}{7} \times 10 \times 10 \times 10 = n( \frac{1}{3} \times \frac{22}{7} \times 5 \times 5 \times 10 \\ n = 2 \times 2 \times 4 \\ n = 16$