Q. 164.4( 5 Votes )

Answer :

Given,

Radius of sphere = 3 cm

Volume of sphere = πr^{3} = × π × 3 × 3 × 3cm^{3} = 36π cm^{3}

Radius of small sphere = cm = 0.3 cm

Volume of small sphere = × π × 0.3 × 0.3 × 0.3cm^{3}

= cm^{3}

Let the number of small balls be n;

n × = × π × 3 × 3 × 3

n = 1000

Hence, the number of small balls = 1000

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