The radius of a spherical ball is (10.4 `pm` 0.4) cm Select the correct alternative

The radius of a spherical ball of iron is 1.5 cm. It is melted and recast into three spherical balls. If the radii of two such balls are 0.75 cm and 1 cm, then find the radius of 3rd ball.

The radius of a sphere is (4.3 pm 0.1) cm .The percentage error in its volume is :

The radius of a ball is (5.2pm0.2) cm. The percentage error in the volume of the ball is (approximately).

The radius of a ball is (5.2pm0.2) cm. The percentage error in the volume of the ball is (approximately).