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56. 2, 10, 30, 68...A) 110B) 120C) 130D) 140

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Solution :

1 ^ 3 + 1 = 1 * 1 * 1 + 1 = 2.

2 ^ 3 + 2 = 2 * 2 * 2 + 2 = 10.

3 ^ 3 + 3 = 3 * 3 * 3 + 3 = 30.

4 ^ 3 + 4 = 4 * 4 * 4 + 4 = 68.

5 ^ 3 + 5 = 5 * 5 * 5 + 5 = 130.

Answer = 130.


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