Instructions

 Find the wrong number in given series sequence.

Question 29

5, 26, 82, 214, 401, 702

Solution

1*2+3=5 ; 4*5+6 = 26 ; 8*9+10 = 82 ; 13*14+15 = 212 ; 19*20 + 21 =401 ; 26*27 +28 = 702
All the numbers except 214 are following a pattern of $$n\times (n+1) + (n+2)$$. Hence, 214 is wrong number.


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