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  3. In the following number series only one number is wrong. Find out the wrong number.

Q.

In the following number series only one number is wrong. Find out the wrong number.

6, 11, 20, 32, 42, 56, 72

[A] 11
[B] 20
[C] 32
[D] 56
Answer & Explanation
Option: [C]

The pattern is 22 + 2, 32 + 3, 42 + 4, 52 + 5, 62 + 6, 72 + 7, 82 + 8

So the wrong number is 32

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