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Question

Shishir is making a cube of side 6 cm using cubes of sides 2 cm. How many 2 cm cubes are required?

A
216
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B
27
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C
9
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D
36
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Solution

The correct option is B 27
The side of the given cube is 2 cm.
To make a cube of side 6 cm, 2 cm cubes are arranged in all three dimensions.
For making the length 6 cm, 3 cubes of 2 cm each are required. Similarly, for the breadth and height of the cube 3 and 3 cubes of 2 cm each respectively.
So, the total number of cubes required is 3×3×3=27

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