Paper 1 · Mathematical Reasoning and Aptitude
UGC NET 26th June 2025 Shift 1
Find the number that can replace question mark (?) in the series given below. 7, 12, 32, 122, ?, 3602, 25202
A602 ✓ Correct
B610
C702
D622
Correct answer: (A) 602 — Each term is the previous term multiplied by a step that grows as 2, 3, 4, 5, 6, 7 with a subtraction that grows as 2, 4, 6, 8, 10,…
Explanation
★Each term is the previous term multiplied by a step that grows as 2, 3, 4, 5, 6, 7 with a subtraction that grows as 2, 4, 6, 8, 10, 12. So 122 × 5 − 8 = 602, and as a check 602 × 6 − 10 = 3602.
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