Three cuboids of dimensions 5 cm x 6 cm x 7 cm X, 4 cm x 7 cm x 8 cm
and 2 cm x 3 cm x 13 cm are melted and a cube is made. Find the side of cube
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We can find the answer by checking the volumes
volume of cube=volume of 3 cuboids
let the side of the cube be 'a'
a^3 = 6*5*7 + 4*7*8 + 3*2*13
a^3 = 210 + 224 + 78
a^3 = 512
=> a = cube root of 512
= 8cm
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