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2 June, 19:15

A cuboid is of length 4.2 m, breadth 1.4 m, and height 1.2 m. Find the number of cubes, each of edge 20 cm, that can be cut from the cuboid

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  1. 2 June, 21:22
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    Step-by-step explanation:

    l = 4.2 m = 4.2 * 100 = 420 cm

    b = 1.4 m = 1.4*100 = 140 cm

    h = 1.2 m = 1.2 * 100 = 120 cm

    Volume of cuboid = l*b*h = 420 * 140 * 120 = 705600 cubic cm

    Volume of cube = a*a*a = 20*20*20 = 8000 cubic cm

    No. of cubes = Volume of cuboid / volume of cube

    = 705600 / 8000 = 882 cubes

    or 420*140*120 / 20*20*20 = 42*14*12/2*2*2 = 21*7*6 = 882 cubes
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