100+ Number Series Questions & Answers for Bank Exams - 2
Question: 6
In each of the following questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the blank spaces.
1, 2, 3, 5, 8, (.....)
(A) 9
(B) 13
(C) 15
(D) 17
Ans: B
Each term in the series is the sum of the preceding two terms.
Thus, 1 + 2 = 3; 2 + 3 = 5; 3 + 5 = 8 and so on.
∴ Missing number = 5 + 8 = 13.
Question: 7
In each of the following questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the blank spaces.
8, 10, 14, 18, (....), 34, 50, 66
(A) 23
(B) 24
(C) 25
(D) 26
Ans: D
The pattern is +2, +4, +4, .... +16, +16.
∴ Missing number = 18 + 8 = 26.
Question: 8
In each of the following questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the blank spaces.
17, 19, 23, 29, (.....), 37
(A) 29
(B) 31
(C) 33
(D) 34
Ans: B
The given series consists of consecutive prime numbers starting from 17. The next prime number after 29 is 31.
So, the missing number is 31.
Question: 9
In each of the following questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the blank spaces.
2, 1, 2, 4, 5, 6, 7, 8, 8, 10, 11, (....)
(A) 9
(B) 10
(C) 11
(D) 12
Ans: B
The given sequence is a combination of three series:
(i). 1st, 4th, 7th, 10th, 13th terms i.e. 2, 4, 6, 8, (....)
(ii). 2nd, 5th, 8th, 11th terms i.e. 1, 4, 7, 10
(iii). 3rd, 6th, 9th, 12th terms i.e. 2, 5, 8, 11.
Clearly, (i) consists of consecutive even numbers.
So, the missing number is 10.
Question: 10
In each of the following questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the blank spaces.
1, 6, 15, (.....), 45, 66, 91
(A) 23
(B) 25
(C) 27
(D) 28
Ans: D
The pattern is +5, +9, ....., +21, +25. ∴ Missing number = 15 + 13 = 28.
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