Question

How many lead balls each 3mm in diameter can be made from a cuboid of dimensions 12cm×11cm×9cm?​

Answer 1

Answer:84,000 lead balls

Step-by-step explanation:

Volume of cuboid=120*110*90

=1188000mm³

Volume of 1 lead ball=4πr³/3

=4*22*3*3*3/3*2*2*2*7

=11*9/7

=99/7 mm³

No. Of balls that can be made=1188000*7/99

=12000*7

=84,000 balls

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Answer 2

Step-by-step explanation:

Please see the photo Hope it helps you