Railways PYQCBT 1 2016

RRB NTPC · Question 32

Select the term that will come next in the following series. 11, 13, 17, 23, 31, 41, 53, 67, 83, ?

  1. 110

  2. 101

  3. 97

  4. 100

Show answer & explanation

Answer: (B) 101

Explanation

The differences between terms are 2, 4, 6, 8, 10, 12, 14, 16, increasing by 2 each time. The next difference is 18, so the next term = 83 + 18 = 101.