GATE_AE_2027_MOCK_03_Q05 GATE 2027 Aerospace Engineering All-India Master Mock 03 (Flight Dynamics, Controls & Space Trajectories) MCQ · 1 Mark
General Aptitude • Analytical & Spatial Aptitude • Spatial Reasoning & Patterns

Find the next number in the sequence: 3, 7, 15, 31, 63, ?

(A) 127
(B) 125
(C) 128
(D) 95
Answer Key:
A

Step-by-Step Verified Solution

### Solution: Pattern is $2n + 1$ or adding $2^k$: $3 (+4) 7 (+8) 15 (+16) 31 (+32) 63 (+64) 127$. Correct: A.
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