1.

2, 3, 10, 39, ?1). 1722). 1543). 744). 62

Answer»

The pattern of the given series is:

⇒ (2 × 1) + 12 = 3

⇒ (3 × 2) + 22 = 10

⇒ (10 × 3) + 32 = 39

⇒ (39 × 4) + 42 = 172 = ?


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