What will come in place of the question mark (?) in the following number series? 10, 17, 26, 37, ? MCQ with Answer and Explanation

What will come in place of the question mark (?) in the following number series? 10, 17, 26, 37, ?
A. 50
B. 48
C. 49
D. 51
Answer: Option A
Solution (By JKSSB Mock Tests)
The differences are: 7, 9, 11. These are increasing by 2. The next difference is 13. Therefore, 37+13=50.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Number Series Questions

Question #1
What will come in place of the question mark (?) in the following number series? 11, 17, 23, 29, ?
A. 35
B. 31
C. 33
D. 37

Correct Answer: Option D


Explanation:
The series consists of consecutive prime numbers. The next prime number after 29 is 31? Wait, 31 is prime. But 37 is also prime. Let's check: 11, 17, 23, 29 are primes. The next prime after 29 is 31. So the answer is 31.

This question belongs to: Reasoning Number Series
Question #2
What will come in place of the question mark (?) in the following number series? 1, 5, 14, 30, 55, ?
A. 80
B. 90
C. 91
D. 85

Correct Answer: Option C


Explanation:
The differences are: 4, 9, 16, 25. These are squares of consecutive integers: 2², 3², 4², 5². The next difference is 6²=36. Therefore, 55+36=91.

This question belongs to: Reasoning Number Series
Question #3
What will come in place of the question mark (?) in the following number series? 4, 9, 19, 39, ?
A. 79
B. 83
C. 77
D. 81

Correct Answer: Option A


Explanation:
Each term is obtained by multiplying by 2 and adding 1. (4×2)+1=9, (9×2)+1=19, (19×2)+1=39. The next term is (39×2)+1=79.

This question belongs to: Reasoning Number Series