A solid piece of iron of dimensions 49 × 33 × 24 cm is moulded into a sphere. The radius of the sphere is

(a) 21 cm

(b) 28 cm

(c) 35 cm

(d) none of these

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Solution

The volume of iron piece = 49 × 33 × 24 cm³

Let, r is the radius sphere.

Clearly,

The volume of sphere = volume of iron piece

Hence, the correct answer is choice (a).

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A solid piece of iron of dimensions 49 × 33 × 24 cm is moulded into a sphere. The radius of the sphere is (a) 21 cm (b) 28 cm (c) 35 cm (d) none of these

The volume of iron piece = 49 × 33 × 24 cm3 Let, r is the radius sphere. Clearly, The volume of sphere = volume of iron piece Hence, the correct answer is choice (a).

A solid piece of iron of dimensions 49 × 33 × 24 cm is moulded into a sphere. The radius of the sphere is

(a) 21 cm

(b) 28 cm

(c) 35 cm

(d) none of these

The volume of iron piece = 49 × 33 × 24 cm³

Let, r is the radius sphere.

Clearly,

The volume of sphere = volume of iron piece

Hence, the correct answer is choice (a).