A covered wooden box has the inner measure as 115cm 75cm and 35cm and the thic

Question

A covered wooden box has the inner measure as 115cm 75cm and 35cm and the thickness of wood is 2.5cm. The volume of the wood is

Options:

A . 81000cu.cm

B . 81775cu.cm

C . 82125cu.cm

D . None of these

Answer: Option C

Inner volume =(115 x 75 x35)cm³ = 301875 cm³
Outer volume =[(115+5)x (75+5)x (35+5)]cm³
= (120 x 80 x40)cm3 = 384000cm³
Volume of wood = (384000 - 301875)cm³ = 82125 cm³

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