Q192
ArithmeticNumber Series & Progressions
Fill in the gap: 3, 8, 6, 14, ______, 20
- a.11
- b.10
- c.8
- d.9
Answer: (D) 9
This is a two-interleaved series: odd positions (3, 6, ?, ...) and even positions (8, 14, 20, ...). Odd position series: 3, 6, 9 (increasing by 3). Even position series: 8, 14, 20 (increasing by 6). The missing term is the 5th term (odd position) = 9.