SSC CGL 2025 PYQ — Question 64

The correct answer is Option 2 i.e. 5026.09 cm³.

Volume of a hollow hemisphere $= \frac{2}{3} \pi \left(R^3-r^3 \right)$

Here, R = 14 cm and r = 7 cm

Volume of metal $= \frac{2}{3} \pi \left(14^3-7^3 \right)$

$= \frac{2}{3} \pi \left(2744-343 \right)$

= 2/3 × 3.14 × 2401

= 5026.09 cm³