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three cubes of silver 6 cm, 8 cm and 12 cm are melted and recasted into a cube.find (i)the length of each edge of the cube. (ii)the lateral surface area of new cube formed.

Let the volume of each cube = 63,83,123
volume of large cube= 63 + 83 + 123 =216 +512+1728
                                                                =2456
i e ,a3 = 2456
So  a= cube root of 2456


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