Discussion
9, 27, 31, 155, 161, 1127, ?
Answer: B
Correct answer: 1135
The operations alternate, the numbers used rising each time: \( \times 3 \), \( +4 \), \( \times 5 \), \( +6 \), \( \times 7 \), and then \( +8 \): \[ 1127 + 8 = \mathbf{1135} \]
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