A covered wooden box has the inner measures as 115 cm, 75 cm and 35 cm and the t

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Question

A covered wooden box has the inner measures as 115 cm, 75 cm and 35 cm and the thickness of wood is 2.5 cm. Find the volume of the wood :

Options:

A . 81000 cu.cm

B . 81775 cu.cm

C . 82125 cu.cm

D . None of these

Answer: Option C
The external measures of the box are (115 + 5) cm, (75 + 5) cm, and (35 + 5) cm i.e., 120 cm, 80 cm and 40 cm
Volume of the wood :
= External volume - Internal volume
= [(120 × 80 × 40) - (115 × 75 × 35)] cm3
= (384000 - 301875) cm3
= 82125 cm3

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