1
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Question

# A solid cube is made using 64 small cubes. For how many small cubes only one side is seen?

A
16
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B
24
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C
28
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D
32
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Solution

## The correct option is D 24If we make a solid cube using 64 small cubes, then each surface will have 16 cubes.The small cubes on each surface which are not side cubes will have only one face visible.For each surface, only 4 such cubes exist.There are total 6 surfaces in a cube.Thus, total no. of cubes having only one side visible =4×6=24.Hence, for 24 cubes only one side is seen.

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