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Railways PYQCBT 1 2016

RRB NTPC · Question 65

Find the missing number (?) from the series.: 3, 12, 39, 120, ? A. 296 B. 275 C. 263 D. 363

  1. C

  2. D

  3. A

  4. B

Show answer & explanation

Answer: (B) D

Explanation

Each term is 3 times the previous plus 3: 3 → 12 → 39 → 120 → 120 × 3 + 3 = 363.