Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
8, 15, 26, ?, 56, 75
Option 1: 39
Option 2: 41
Option 3: 35
Option 4: 43
Correct Answer: 39
Solution :
Given:
8,15, 26, ?, 56, 75
In the above-given series, add prime numbers to the previous number to obtain the next number –
8 + 7 = 15; 15 + 11 = 26; 26 + 13 = 39; 39 + 17 = 56; 56 + 19 = 75
So, 39 is the missing number. Hence, the first option is correct.
Related Questions
Know More about
Staff Selection Commission Combined Grad ...
Result | Eligibility | Application | Selection Process | Preparation Tips | Admit Card | Answer Key
Get Updates BrochureYour Staff Selection Commission Combined Graduate Level Exam brochure has been successfully mailed to your registered email id “”.