Mathematical Reasoning and Aptitude – UGC NET Paper I – Practice Questions

Number Series Completion

1. Find the missing number in the following series. 512, 256, 128, ?, 32, 16, 8

(a) 52
(b) 61
(c) 64
(d) 56

2. Find the missing number in the following series. 2, 7, 17, 32, 52, 77, ?

(a) 107
(b) 91
(c) 101
(d) 92

3. Find the missing number in the following series. 15, 18, 24, ?, 45

(a) 27
(b) 30
(c) 33
(d) 36

4. Fill in the missing number in the following arrangement based on some principle.

(a) 4
(b) 5
(c) 6
(d) 8

5. Find the missing number in the following series. 8, 24, 12, ?, 18, 54

(a) 26
(b) 24
(c) 36
(d) 32

6. What is the number that comes next in the sequence? 12, 20, 100, ?, 8,900, 88,900, 8,88,900

(a) 1,000
(b) 900
(c) 800
(d) 400

7. Find the missing number in the following series. 28, 33, 31, 36, ?, 39

(a) 30
(b) 32
(c) 33
(d) 34

8. Find the missing number in the following series. 1, 3, 4, 8, 15, 27, ?

(a) 45
(b) 50
(c) 55
(d) 60

9. Find the missing number in the following series. 4, 16, 8, 64, ?, 256

(a) 16
(b) 24
(c) 32
(d) 20

10. Find the missing number in the following series. 2/3, 4/7, ?, 11/21, 16/31

(a) 10/8
(b) 6/10
(c) 5/10
(d) 7/13

11. Find the wrong number in the following sequence. 125, 127, 130, 135, 142, 153, 165

(a) 130
(b) 142
(c) 153
(d) 165

12. Find the missing number in the following series. 3, 10, 101, ?

(a) 10,101
(b) 10,201
(c) 10,202
(d) 11,012

13. Find the missing number in the following series. 1, 1, 4, 8, 9, 27, 16, ?

(a) 32
(b) 64
(c) 81
(d) 256

14. Find the missing number in the following series. 3, 5, 13, 43, 177, ?

(a) 891
(b) 713
(c) 885
(d) 899

15. Find the missing number in the following series. 3, 4, 7, 7, 13, 13, 21, 22, 31, 34, ?

(a) 41
(b) 43
(c) 45
(d) 47

16. Find the missing number in the following series. 10, 24, 52, ?, 220, 44, 892

(a) 104
(b) 98
(c) 112
(d) 108

17. Which of the following will not be a number of the series 1, 8, 27, 64, 125, ?

(a) 256
(b) 512
(c) 729
(d) 1,000

18. Find the missing number in the following series. 13, 32, 24, 43, 35, ?, 46, 65, 57, 76

(a) 45
(b) 52
(c) 54
(d) 55

19. Find the missing number in the following series. 23, 33, 46, 62, 81, 103, ?

(a) 126
(b) 130
(c) 133
(d) 128

20. Find the wrong number in this following sequence. 10, 26, 74, 218, 654, 1946

(a) 26
(b) 74
(c) 218
(d) 650