Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
69, 65, 67, 63, ?, 61
Option 1: 65
Option 2: 60
Option 3: 62
Option 4: 64
Correct Answer: 65
Solution :
Given:
69, 65, 67, 63, ?, 61
Subtract 4 and add 2 alternately to the previous term to obtain the next term.
69 – 4 = 65; 65 + 2 = 67; 67 – 4 = 63; 63 + 2 = 65; 65 – 4 = 61
So, 65 is the missing term in the given series. Hence, the first option is correct.
Related Questions
Know More about
Staff Selection Commission Sub Inspector ...
Result | Eligibility | Application | Selection Process | Cutoff | Admit Card | Preparation Tips
Get Updates BrochureYour Staff Selection Commission Sub Inspector Exam brochure has been successfully mailed to your registered email id “”.