Find the next number in the series: 2, 3, 7, 8, 12, 13, ?
- A. 14
- B. 16
- C. 17 ✓
- D. 18
Correct answer
C. 17
Explanation
The series alternates adding 1 and adding 4 (2+1=3, 3+4=7, 7+1=8, 8+4=12, 12+1=13), so the next step adds 4: 13 + 4 = 17.
C. 17
The series alternates adding 1 and adding 4 (2+1=3, 3+4=7, 7+1=8, 8+4=12, 12+1=13), so the next step adds 4: 13 + 4 = 17.