Question

22. A solid rectangular piece of wood measures 6 mx6 cm 2 cm. Find the weight of this
piece if I cu. cm. of iron weighs 8 g.
[Hint: (a) The volume is to be obtained in cu. cm.
(b) Multiply the volume by 8 to get the weight.]
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Answer 1

Volume = lbh

= 6 x 100 x 6 x 2 cm³

= 7200 cm³

Weight = Volume x 8

= 7200 x 8

= 57600 g

= 57.6 kg

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