120, 99, 80, 63, 48, ?
2025
120, 99, 80, 63, 48, ?
- A.
35
- B.
37
- C.
39
- D.
40
Attempted by 892 students.
Show answer & explanation
Correct answer: A
Key pattern: the differences between consecutive terms are odd numbers that decrease by 2 each time.
120 → 99 : subtract 21 (120 − 21 = 99)
99 → 80 : subtract 19 (99 − 19 = 80)
80 → 63 : subtract 17 (80 − 17 = 63)
63 → 48 : subtract 15 (63 − 15 = 48)
Next: subtract 13 (48 − 13 = 35)
Answer: 35