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Q:
A) 80 | B) 87 |
C) 89 | D) 90 |
Answer: C) 89
Explanation:
Explanation:
In the figure, there are 9 columns containing 5 cubes each, 7 columns containing 4 cubes each, 5 columns containing 3 cubes each and 1 column containing 1 cube.
Total number of cubes = (9 x 5) + (7 x 4) + (5 x 3) + (1 x 1) = 89