the outer measure of the wooden box is 4m×3m×2m if the inner measure of the box is 3m×2m×5m then find the volume of the wood used
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Given outer length =5 cm
Outer breadth =4 cm
Outer height =7 cm
Outer volume = length × breadth × height
=5×4×7=140cm
3
Thickness of wooden box, w=1 cm
Inner length =l–2w=5–2=3 cm
Inner breadth =b–2w=4–2=2 cm
Inner height =h–2w=7–2=5 cm
Inner volume =3×2×5=30cm
3
Volume of wood used = outer volume – inner volume
=140−30=110cm
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