Madhya Pradesh Police Exam Model Paper 6

Question : 14 of 101

Marks: +1, -0

Find the wrong number in the given series:
2, 10, 30, 68, 120, 222

Solution:

1^3 + 1 = 2

2^3 + 2 = 10

3^3 + 3 = 30

4^3 + 4 = 68

$5^3 + 5 = 130$

6^3 + 6 = 222

Only 120 does not follow this pattern.
Hence the wrong term is 120.

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