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Find the value of (?) in the series.

2, 6, 21, 88, ?, ___

A446

B177

C445

D176

Answer:

C. 445

Read Explanation:

1 x 1 + 1 = 2 2 x 2 + 2 = 6 6 x 3 + 3 = 21 21 x 4 + 4 = 88 88 x 5 + 5 = 445


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