The edges of three cubesof metalware 3cm,4m and 5cm.they are melted and formed into a single cube.Find the edge of re new cube.

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Solution

Volume of new cube = Sum of volume of three cubes

= 33 + 43 + 53

= 216 cm3

i.e., (edge)3 = 216 cm3

So, Edge of the single cube = 6 cm

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