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Multiple choice

Directions: In the following number series, only one number is wrong. Find out the wrong number. 2, 8, 12, 20, 30, 42, 56

  1. 8

  2. 42

  3. 30

  4. 20

  5. 12
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The series is n^2 + n: 1^2+1=2, 2^2+2=6 (not 8), 3^2+3=12, 4^2+4=20, 5^2+5=30, 6^2+6=42, 7^2+7=56. The number 8 is incorrect.

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