RRB NTPC · Question 68
Find the incorrect number in the series : 6, 11, 16, 20, 26
Show answer & explanation
Answer: (A) 20
Explanation
The series increases by 5: 6, 11, 16, 21, 26. So 20 is wrong; it should be 21.
Railways PYQCBT 2 2017
RRB NTPC · Question 68
Answer: (A) 20
The series increases by 5: 6, 11, 16, 21, 26. So 20 is wrong; it should be 21.