Find the missing term: 6, 11, 21, 36, 56, ?
- 84 only
- 75 only
- 78 only
- 81
Show answer and solution
Correct answer: D. 81
1. Differences: 5, 10, 15, 20, ?
2. Next difference = 25.
3. 56 + 25 = 81.
4. Hence option A.
_Source: jkchrome.com SSC Number Series PDF (Mistral OCR), Type I missing number_