Volumes Practice Test 2

Question : 28 of 40

Marks: +1, -0

Three cubes having side 2 cm, 3 cm and 4 cm respectively are melted together to form a new cube. The side of the new cube will be

Solution:

Volume of the new cube =

2^3 + 3^3 + 4^3

= 8 + 27 + 64 = 99cu cm
∴ Side of the new cube =

∛{99}

= 4.626 cm.

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