Question : Directions: What should come in place of the question mark (?) in the given series?
57, 43, 31, 21, 13, (?)
Option 1: 5
Option 2: 6
Option 3: 9
Option 4: 7
New: SSC CHSL tier 1 answer key 2024 out | SSC CHSL 2024 Notification PDF
Recommended: How to crack SSC CHSL | SSC CHSL exam guide
Don't Miss: Month-wise Current Affairs | Upcoming government exams
Correct Answer: 7
Solution :
Given:
57, 43, 31, 21, 13, (?)
Subtract consecutive even numbers starting from 14 in decreasing order to get the missing term –
57 – 14 = 43; 43 – 12 = 31; 31 – 10 = 21; 21 – 8 = 13; 13 – 6 = 7
So, 7 is the missing term in the series. Hence, the fourth option is correct.
Related Questions
Know More about
Staff Selection Commission Combined High ...
Result | Eligibility | Application | Admit Card | Answer Key | Preparation Tips | Cutoff
Get Updates Brochure
Your Staff Selection Commission Combined Higher Secondary Level Exam brochure has been successfully mailed to your registered email id “”.
