Multiple choice

Find the wrong number in the given below series. 50, 51, 47, 56, 45, 65, 29

  1. 45

  2. 50

  3. 29

  4. 65

  5. 51
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A Correct answer
Explanation

The series follows the pattern of alternating + and - operations with consecutive squares: +1², -2², +3², -4², +5², -6². Starting from 50: 50+1=51, 51-4=47, 47+9=56, 56-16=40, 40+25=65, 65-36=29. At position 5, we should get 40, but the series has 45 instead, making it the wrong number.

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