Multiple choice

Find the missing term in the sequence $1,5,11,19,29,?,55$.

  1. $39$
  2. $41$
  3. $43$
  4. $45$
  5. $47$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Differences: 5-1=4, 11-5=6, 19-11=8, 29-19=10. The differences are increasing by 2. Next difference should be 12. 29+12=41. Check: 41+14=55. Correct.

AI explanation

The differences between the consecutive terms are 4, 6, 8, and 10. This forms an arithmetic progression with a common difference of 2, so the next difference is 12. Adding 12 to the last given term, 29, results in 41.

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