What is the next number of the following sequence 12, 60, 140, 252,.....

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29 Apr 2013 sequence

What is the next number of the following sequence
12, 60, 140, 252,.....

OPtion

1) 352
2) 376
3) 382
4) 396
5) 400
6) 422
7) 456
8) 476
9) 496
10)None of these

Solution

(1+3)^2-4=12
(3+5)^2-4=60
(5+7)^2-4=140
(7+9)^2-4=252
(9+11)^2-4=396

Correct Option: 4 Best Solution (0)