Question : Directions: In the following question, find the odd number pair from the given alternatives.
Option 1: 11
Option 2: 17
Option 3: 19
Option 4: 21
Latest: SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL complete guide
Correct Answer: 21
Solution :
Let's check the options –
First option:
11→
The factors of 11 are 1 and 13. So, 11 is a prime number.
Second option:
17→
The factors of 17 are 1 and 17. So, 17 is a prime number.
Third option:
19→
The factors of 19 are 1 and 19. So, 19 is a prime number.
Fourth option:
21→
The factors of 21 are 1, 3, 7 and 21. So, 21 is not a prime number.
Hence, the f ourth option is correct.
Related Questions
Know More about
Staff Selection Commission Combined Grad ...
Answer Key | Eligibility | Application | Selection Process | Preparation Tips | Result | Admit Card
Get Updates Brochure
Your Staff Selection Commission Combined Graduate Level Exam brochure has been successfully mailed to your registered email id “”.
