A cuboid of length 40cm, breadth 20cm and height 60cm is to be made. Find the cost of polishing the box if the rate of polishing is AED 24/s

Question

A cuboid of length 40cm, breadth 20cm and height 60cm is to be made. Find the cost of polishing the box if the rate of polishing is AED 24/sq. cm (Please)

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Lệ Thu 1 month 2021-08-14T06:14:08+00:00 1 Answers 0 views 0

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    2021-08-14T06:16:00+00:00

    The cost of construction the box is Rs.7795200.

    Step-by-step explanation:

    Given : A cuboid of length 400 cm, Breadth 220 cm and Height 120 cm is to be made with wood costing Rs.24 per.sq.m.

    To find : The cost of construction the box ?

    Solution :

    A cuboid of length 400 cm, Breadth 220 cm and Height 120 cm.

    The total surface area of the cuboid is

    TSA=2 (lb+bh+hl)TSA=2(lb+bh+hl)

    Substitute the values,

    TSA=2 (400\times 220+220\times 120+120\times 400)TSA=2(400×220+220×120+120×400)

    TSA=2 (88000+26400+48000)TSA=2(88000+26400+48000)

    TSA=2 (162400)TSA=2(162400)

    TSA=324800\ cm^2TSA=324800 cm

    2

    Wood costing Rs.24 per.sq.m.

    The cost of box constructed is

    C=324800\times 24C=324800×24

    C=Rs.7795200C=Rs.7795200

    Therefore, the cost of construction the box is Rs.7795200.

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