Question

A 4 cm long cube is cut into 1cm long cubes .how many small cubes are formed.

Answer 1

hence total no of small cube required is
16×4=64

Answer 2

Let n be number of small cubes
$n \times volume \: of \: small \: cube \\ \: = volume \: of \: big \: cube \:$
$n \: \times {1}^{3} = {4}^{3}$
$n = 64$
64 small cubes can be formed
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