Railways PYQCBT 1 2020

RRB NTPC · Question 100

From among the given options, identify the number that DOES NOT belong to the following series. 2, 5, 14, 41, 122, 365, 1095

  1. 41

  2. 1095

  3. 122

  4. 365

Show answer & explanation

Answer: (B) 1095

Explanation

Each term is 3 × previous − 1: 2, 5, 14, 41, 122, 365, then 3 × 365 − 1 = 1094. So 1095 does not belong.