Number Series Questions For SSC GD PDF
Number Series Questions For SSC GD PDF
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Question 1: In the following question, select the missing number from the given series:
6, 19, 54, 167, 494, ?
a) 1491
b) 1553
c) 1361
d) 1642
Question 2: In the following question, select the missing number from the given series:
67, 70, 74, 77, 81, 84 ?
a) 87
b) 88
c) 86
d) 89
Question 3: In the following question, a series is given with one or more number (s) missing. Choose the correct alternative from the given options.
22, 22, 23, 20, 16, 17, 17, ?, ?, 8
a) 18, 9
b) 12, 13
c) 10, 9
d) 13, 10
Question 4: In the following question, a series is given with one or more number (s) missing. Choose the correct alternative from the given options.
?, 5, 30, 186, 1309, 10480
a) 0.25
b) 0.75
c) 1.00
d) 0
Question 5: In the following question, a series is given with one or more number (s) missing. Choose the correct alternative from the given options.
7, 51, 8, 65, 9, ?
a) 79
b) 80
c) 81
d) 82
Question 6: In the following question, a series is given with one or more number (s) missing. Choose the correct alternative from the given options.
0.2, 0.16, 0.072, 0.0256, ?
a) 0.0016
b) 0.004
c) 0.00512
d) 0.008
Question 7: Which of the following replaces ‘?’ in the following series?
10,21,45,84,500,?
a) 1050
b) 1045
c) 985
d) 1025
Instructions
In the following question, select the missing number from the given series.
Question 8: 84, 42, 44, 22, 24, 12, ?
a) 20
b) 14
c) 24
d) 28
Question 9: 1, 4, 13, 40, 121, ?
a) 284
b) 286
c) 364
d) 396
Instructions
In the following question, select the missing number from the given series.
Question 10: 2, 7, 22, 67, ?
a) 197
b) 198
c) 200
d) 202
Question 11: 1, 8, 29, 92, 281, ?
a) 567
b) 628
c) 776
d) 848
Instructions
In the following question, select the missing number from the given series.
Question 12: 1, 7, 3, 9, 6, 12, 10, 16, 15, ?
a) 18
b) 15
c) 20
d) 21
Question 13: 7, 10, 14, 19, 25, ?
a) 32
b) 36
c) 38
d) 40
Question 14: In the following question, select the missing number from the given series.
?, 5, 15, 45, 113
a) 1
b) 2
c) 3
d) 4
Question 15: In the following question, select the missing number from the given series.
1, 1, 3, 4, 5, 9, 7, 16, 9, 25, 11, ?
a) 17
b) 36
c) 49
d) 37
Instructions
In the following question, select the missing number from the given series.
Question 16: 2.2, 14.8, 40, 90.4, ?
a) 191.2
b) 194.4
c) 196.2
d) 208.4
Question 17: 84, 42, 28, 21, ?
a) 10.5
b) 16.8
c) 18.4
d) 19.6
Question 18: In the following series find 20th number
9, 5, 1, -3 -7, -11,……..
a) -64
b) -75
c) -70
d) -67
Instructions
A series is given, with one from missing, Choose the correct alternative from the given ones that will complete the series.
Question 19: 16, 61, 25, 52, 36, 63, 49, ?
a) 36
b) 94
c) 72
d) 46
Question 20: Find the wrong number in the given series ?
15, 28, 30, 39, 48
a) 28
b) 15
c) 30
d) 39
Answers & Solutions:
1) Answer (A)
2) Answer (B)
3) Answer (D)
4) Answer (A)
5) Answer (C)
6) Answer (D)
7) Answer (D)
Difference between the numbers is in the form of $[x][x^{2}]$
$10+[1][1^{2}]=10+11=21$
$21+[2][2^{2}]=21+24=45$
$45+[3][3^{2}]=45+39=84$
$84+[4][4^{2}]=84+416=500$
Next number:
$500+[5][5^{2}]=500+525=1025$
8) Answer (B)
9) Answer (C)
10) Answer (D)
11) Answer (D)
12) Answer (D)
13) Answer (A)
14) Answer (C)
15) Answer (B)
16) Answer (A)
17) Answer (B)
18) Answer (D)
The given series is an arithmetic progression with first term $a=9$ and common difference $d=-4$
$n^{th}$ term in an A.P. = $A_n=a+(n-1)d$
=> $A_{20}=9+(20-1)\times(-4)$
= $9+(19)(-4)$
= $9-76=-67$
=> Ans – (D)
19) Answer (B)
Series : 16, 61, 25, 52, 36, 63, 49, ?
In pairs of two, square of natural numbers and their reverse is written.
Eg :- 16 and 61, 25 and 52, 36 and 63
Similarly, reverse of 49 = 94
=> Ans – (B)
20) Answer (E)
