1.

3, 5, 13, 19, 31, 41, ?1). 522). 553). 574). 61

Answer»

The pattern is as FOLLOWS;

3 = 12 + 1 + 1

⇒ 5 = 22 + 2 - 1

⇒ 13 = 32 + 3 + 1

⇒ 19 = 42 + 4 - 1

⇒ 31 = 52 + 5 + 1

⇒ 41 = 62 + 6 - 1

57 = 72 + 7 + 1 = ?

? = 57



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