GATE_AE_2027_MOCK_04_Q05
GATE 2027 Aerospace Engineering All-India Master Mock 04 (Aerospace Structures, Thin-Walled Beams & Aeroelasticity)
MCQ · 1 Mark
General Aptitude • Analytical & Spatial Aptitude • Spatial Reasoning & Patterns
Find the missing number in the series: 2, 6, 12, 20, 30, 42, ?
(A) 56
(B) 54
(C) 48
(D) 60
Answer Key:
A
Step-by-Step Verified Solution
### Solution: Differences: +4, +6, +8, +10, +12, next is +14. 42 + 14 = 56 (also n*(n+1): 1*2, 2*3, 3*4, 4*5, 5*6, 6*7, 7*8 = 56). Correct: A.