Multiple choice

In the following a wrong number series is given. Find the wrong term in the following number series? 561 642 763 932 1175 1446

  1. 1175

  2. 932

  3. 763

  4. 642

  5. 561
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The pattern in the number series is that each term is obtained by adding the square of consecutive odd numbers: 561 + 9² = 561 + 81 = 642; 642 + 11² = 642 + 121 = 763; 763 + 13² = 763 + 169 = 932; 932 + 15² = 932 + 225 = 1157; 1157 + 17² = 1157 + 289 = 1446. The term 1175 breaks this pattern - it should be 1157.

Keep practicing — related questions