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Multiple choice

Select the missing term in the series from the given alternatives. 5, 11, ?, 29, 41, 55

  1. 19

  2. 20

  3. 22

  4. 18

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The pattern is n² + n + 1: 2²+2+1=5, 3²+3+1=11, 4²+4+1=19, 5²+5+1=29, 6²+6+1=41, 7²+7+1=55. The missing term for n=4 is 19. The differences are 6, 8, 10, 12, 14 - consecutive even numbers.

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