Question

Q.9 A closed box is made up of wood which is 2 cm thick. Its external dimensions are 80 cm * 72 CM x 48 cm. find:- i) the capacity of the box. i)the volume of the wood used in making the box. the weight of the empty box is 1 cm cube of wood weigh 8.5g.​

Answer 1

Answer:

i) Capacity of box = 1,95,776 cm³

i) Capacity of box = 1,95,776 cm³ii) Volume of wood = 44,224cm³

Step-by-step explanation:

i) Capacity of box = (80−4)×(60−4)×(50−4)

=76×56×46=1,95,776 cm³

ii) Volume of wood=80×60×50=240,000‬cm³

Dimensions of inner wood because to calculate the volume of wood required we have to subtract the inner dimensions from outer dimensions.

Thickness of wood=2 cm

Inner dimension=(80−4)×(60−4)×(50−4)

=76×56×46=1,95,776cm³

Volume of wood=2,40,000‬−1,95,776=44,224cm³

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