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Question: How many small cubes are there in the solid?



A ) 29
B ) 30
C ) 27
D ) 25

Steps to derive

1 Number of cubes in each layer = 9
 [Count the number of cubes in the top layer.]

2 Number of layers = 3

3 Total number of cubes = 9 × 3 = 27



Hence the right answer is Option C

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