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Question

The number of small cubes with an edge of 10 cm that can be accommodated in a cubical box of edge 1 m is ___.

A
10
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B
100
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C
1000
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D
1
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Solution

The correct option is C 1000
We know, volume of a cube of side(edge) 'a' is a3.

So, Volume of the cubical box,
V=(1×1×1) m3
V=1 m3

Volume of the small cube,
V=(10×10×10) cm3
V=1000 cm3
V=0.001 m3 (1 m3=106 cm3)

Let the number of small cubes be 'n'.
Then, n×V=V
n=VV
n=10.001
n=1000
Number of small cubes that can be accommodated in the cubical box is 1000.

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