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Railways PYQCBT 1 2020

RRB NTPC · Question 94

Select the numbers that can replace the question marks (?) in the following series. 97, 86, 101, 89, 107, ?, ?

  1. 114; 169

  2. 94; 115

  3. 84; 125

  4. 121; 144

Show answer & explanation

Answer: (B) 94; 115

Explanation

Two series alternate: 97, 101, 107, … (+4, +6, +8 → 115) and 86, 89, … (+3, +5 → 94). The next two terms are 94 and 115.