Question

a shopkeeper has one ball of radius 5 cm.with the same material how many balls of radius 2.5 cm can be made

Answer 1

HELLO MATE

HERE IS YOUR ANSWER

RADIUS OF BALL = 5 cm

VOLUME OF BALL = 4/3 π r³

= 4/3 * 22/7 * ( 5cm )³

= 88/21 * 125cm³

= 11000/21 cm³

RADIUS OF SECOND BALL = 2.5 cm

VOLUME OF SECOND BALL = 4/3 π r³

= 4/3 * 22/7 * ( 2.5 cm )³

= 88/21 * 15.625

= 1375/21

NO. OF BALLS MADE = 11000/21 ÷ 1375/21

= 11000/21 * 21/1375

= 8

HENCE , THE CORRECT ANSWER IS 8 BALLS.

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Answer 2

It may help you

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