Question:
9, 17, 33, 65, ?
A117
B119
C129
D99
Answer:
C. 129
Explanation:
→ (9 × 2 -1) = 17 → (17 × 2 -1) = 33 → (33 × 2 -1) = 65 → (65 × 2 -1) = 129
Question:
A117
B119
C129
D99
Answer:
→ (9 × 2 -1) = 17 → (17 × 2 -1) = 33 → (33 × 2 -1) = 65 → (65 × 2 -1) = 129