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Count the number of cubes in the given f...

Count the number of cubes in the given figure.

A

78

B

75

C

80

D

82

Text Solution

Verified by Experts

The correct Answer is:
B

Number of cubes in layer `1 = 5 xx 5 = 25`
Number of cubes in layer `2 = 4 xx 5 = 20`
Number of cubes in layer `3 = 3 xx 5=15`
Number of cubes in layer `4 = 2 xx 5 = 10`
Number of cubes in layer `5 = 1 xx 5 = 5`
Total number of cubes in the figure `= 25 + 20 + 15 + 10 + 5 = 75`
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