Question No 1

Which number is the odd one out, 16, 25, 36, 72, 144, 196, 225

Select the correct answer


Solution!
Each of the numbers except 72 is a perfect square..

Question No 2

0 , 100 , 6 , 94 , 12 , 88 , 18 , 82 , ? , ?

Select the correct answer


Solution!
There are two sequences interwoven.

Add 6 starting at 0 and deduct 6 starting at 100..

Question No 3

C , F , K , R , ?

Select the correct answer


Solution!
Skip 2 , 4 , 6 , 8,... alphabets.

Question No 4

B , L , R , T , ?

Select the correct answer


Solution!
Skip alphabets 10 , 6 , 2 , -2 , -6,....

Question No 5

7964325 is to 6975234 , 5822139 is to 2859312 as 7469851 is to ?

Select the correct answer


Solution!
Reverse the first three digits then reverse the last four digits..

Question No 6

100 , 98 , 94 , 88 , 80 , 70 , ?

Select the correct answer


Solution!
Deduct 2, 4, 6, 8, 10, 12.

Question No 7

2 , 14 , 32 , 56 , 86 , ?

Select the correct answer


Solution!
Add 12 , 18 , 24 , 30 , 36,....

Question No 8

O , P , R , U , ?

Select the correct answer


Solution!
Skip 0 , 1 , 2 , 3,... alphabets..

Question No 9

Which number is the odd one out, 6, 9, 15, 21, 24, 28, 30

Select the correct answer


Solution!
Each of the numbers except 28, is a multiple of 3..

Question No 10

100 , 97 , 91 , 82 , ?

Select the correct answer


Solution!
-3 , -6 , -9 , -12
(Multiples of 3 are subtracted).

Question No 11

100 , 96.75 , 93.5 , 90.25 , 87 , ?

Select the correct answer


Solution!
Deduct 3.25 each time..

Question No 12

Which number is the odd one out, 835, 734, 642, 751, 853, 981, 532

Select the correct answer


Solution!
In each number except 751, the difference of third and first digit is the middle one..

Question No 13

N , N , P , L , S , I , W , ?

Select the correct answer


Solution!
Two parallel series. One with skipping 1 , 2 , 3,... alphabets in forward order and other with skipping same alphabets in reverse order..

Question No 14

Which number is the odd one out, 2, 5, 10, 17, 26, 37, 50, 64

Select the correct answer


Solution!
(1*1)+1 , (2*2)+1 , (3*3)+1 , (4*4)+1 , (5*5)+1 , (6*6)+1 , (7*7)+1 , (8*8)+1

But, 64 is out of pattern..

Question No 15

8 , 16 , 32 , 64 , 128 , ?

Select the correct answer


Solution!
Multiply previous term with 2 to find next term..

Question No 16

1000 , 971.4 , 942.8 , 914.2 , 885.6 , ?

Select the correct answer


Solution!
Deduct 28.6 each time..

Question No 17

F , G , I , L , P , ?

Select the correct answer


Solution!
Skip alphabets 0,1,2,....

Question No 18

6 , 8 , 10 , 14 , 18 , 26 , 34 , 50 , 66 , ?

Select the correct answer


Solution!
Add 2, 4, 4, 8, 8, 16, 16,....

Question No 19

7/2 , 4 , 7 , 14 , ?

Select the correct answer


Solution!
Multiply previous 2 numbers and divide by 2..

Question No 20

B , C , E , G , K , ?

Select the correct answer


Solution!
Prime numbers 2, 3 , 5 , 7 , 11 , 13,....

Question No 21

1.5 , 3 , 5.5 , 9 , 13.5 , ?

Select the correct answer


Solution!
Add 1.5, 2.5, 3.5, 4.5, 5.5.

Question No 22

17 , 34 , 51 , 68 , ?

Select the correct answer


Solution!
Add 17 each time..

Question No 23

3 , 6 , 9 , 12 , 15 , ?

Select the correct answer


Solution!
Add 3 in previous term to find next term..

Question No 24

3/81 , 4/256 , 5/625 , ?

Select the correct answer


Solution!
Add 1 in numerator and in denominator
(3*3)^2 = 81
(4*4)^2 = 256
(5*5)^2 = 625
in the same way
(6*6)^2 = 1296.

Question No 25

110 , ? , 99 , 81 , 72 , 63 , 54 , 45

Select the correct answer


Solution!
Deduct the sum of the digits of the previous number each time..

Question No 26

20 , 30 , 45 , ?

Select the correct answer


Solution!
Multiply previous term with 1.5 to find next term..

Question No 27

A , B , D , I , ?

Select the correct answer


Solution!
Multiply position of previous alphabet with 3 and subtract 1 , 2 , 3,... respectively..

Question No 28

7 , 10 , 25 , 94 , 463 , ?

Select the correct answer


Solution!
7*2 - 4 = 10
and
10*3 - 5 = 25
and
25*4 - 6 = 94
and
94*5 - 7 = 463
In the same way
463*6 - 8 = 2770.

Question No 29

C , F , J , O , ?

Select the correct answer


Solution!
Skip 2 , 3 , 4,... alphabets..

Question No 30

2 , 5.75 , ? , 13.25 , 17 , 20.75

Select the correct answer


Solution!
Add 3.75 each time..

Question No 31

0 , 3 , 8 , 15 , ?

Select the correct answer


Solution!
Add 3 , 5 , 7,....

Question No 32

O , R , M , T , K , V , I , ?

Select the correct answer


Solution!
Two parallel series one with skipping one alphabet in reverse order and other with skipping one alphabet in forward order..

Question No 33

Find the odd man out, 3, 5, 11, 14, 17, 21

Select the correct answer


Solution!
Each of the numbers except 14 is an odd number.

The number '14' is the only EVEN number..

Question No 34

2 , 6 , 15 , 34 , 73 , ?

Select the correct answer


Solution!
Multiply with 2 and add 2 , 3 , 4 , 5 , 6,....

Question No 35

7 , 12 , 19 , 28 , ?

Select the correct answer


Solution!
add 5 , 7 , 9 , 11,....

Question No 36

Which number is the odd one out, 8, 27, 64, 100, 125, 216, 343

Select the correct answer


Solution!
All others are perfect cube of any number but 100 is not the perfect cube of any number..

Question No 37

1 , 1 , 3 , 15 , 105 , ?

Select the correct answer


Solution!
Multiply by 1, 3, 5, 7, 9.

Question No 38

100 , 50 , 200 , 25 , 400 , ?

Select the correct answer


Solution!
There are two interwoven sequences.

Multiply 2 starting at 100 and devide by 2 starting at 50..

Question No 39

1 , 2 , 4 , 8 , ?

Select the correct answer


Solution!
Add 1 first and then add double of previously added number..

Question No 40

2 , 6 , 18 , 54 , 162 , ?

Select the correct answer


Solution!
Multiply previous term with 2 to find next term..

Question No 41

Which number is the odd one out, 10, 14, 16, 18, 21, 24, 26

Select the correct answer


Solution!
All numbers are even except 21..

Question No 42

B , D , G , K , P , ?

Select the correct answer


Solution!
Skip 1 , 2 , 3,... alphabets..

Question No 43

Which number is the odd one out, 10, 25, 45, 54, 60, 75, 80

Select the correct answer


Solution!
Each of the numbers except 54 is multiple of 5..

Question No 44

71 , 25 , 83 , 37 , 95 , 49 , ?

Select the correct answer


Solution!
Two parallel series both with adding 12..

Question No 45

3925 and 277 , 4697 and 2416 , 6257 and ?

Select the correct answer


Solution!
3 * 9 = 27
5 + 2 = 7
(277).

4 * 6 = 24
and 9 + 7 = 16
(2416)

Similarly,
6 * 2 = 12
and 5 + 7 = 12
(1212).

Question No 46

F , O , T , W , ?

Select the correct answer


Solution!
Skip 8 , 4 , 2 , 1 alphabets..

Question No 47

5 , 2.5 , 1.25 , 0.625 , ?

Select the correct answer


Solution!
Divide previous term with 2 to find next term..

Question No 48

0 , 1 , 4 , 9 , 16 , 25 , 36 , 49 , ?

Select the correct answer


Solution!
Add 1, 3, 5, 7, etc..

Question No 49

9 , 18 , 27 , ? , 45 , ? , 63

Select the correct answer


Solution!
Add 9 each time..

Question No 50

Which number is the odd one out, 331, 482, 551, 263, 383, 362, 284

Select the correct answer


Solution!
In each number except 383, the product of first and third digits is the middle one..

Question No 51

-6 , 9 , -27/2 , 81/4 , -243/8 , ?

Select the correct answer


Solution!
Multiply previous term with -3/2 to find next term..

Question No 52

What four-digit number should replace the question mark? 4342 (3176) 1726, 7995 (7516) 2162, 8418 (????) 1725

Select the correct answer


Solution!
Delete the digits outside the brackets that appear twice, and insert the remaining digits in the brackets in the same order that they appear outside the brackets
8418 (4725) 1725.

Question No 53

Which number is the odd one out, 396, 462, 572, 427, 671, 264

Select the correct answer


Solution!
In each number except 427, the middle digit is the sum of other two..

Question No 54

B , D , F , H , J , L , ?

Select the correct answer


Solution!
Skip one alphabet..

Question No 55

759 , 675 , 335 , 165 , ?

Select the correct answer


Solution!
Each number is formed by multiplying the number formed by the first two digits of the previous number by its third digit.

So, 16 * 5 = 80.

Question No 56

492 , 366 , 189 , 810 , ?

Select the correct answer


Solution!
8 * 1 = 8, 8 + 0 = 8.

Question No 57

78214 and 292 , 38421 and 459 , 69517 and ?

Select the correct answer


Solution!
78 + 214 = 292
38 + 421 = 459

So, 69 + 517 = 586.

Question No 58

100 , 1 , 97.5 , 3.5 , 92.5 , 8.5 , 85 , 16 , ? , ?

Select the correct answer


Solution!
There are two interwoven sequences.

subtract 2.5, 5, 7.5 starting at 100 and Add 2.5, 5, 7.5 starting at 1..

Question No 59

1 , 2.65 , 4.3 , 5.95 , 7.6 , ?

Select the correct answer


Solution!
1.65 is adding in each term..

Question No 60

Which number is the odd one out, 3, 5, 7, 12, 17, 19

Select the correct answer


Solution!
Each of the numbers is a prime number except 12..

Question No 61

1 , 2 , 3 , 5 , 7 , 10 , 13 , 17 , 21 , ? , ?

Select the correct answer


Solution!
+1, +1, +2, +2, +3, +3, +4, +4, +5, +5.

Question No 62

12 , 14 , 34 , 36 , 56 , 58 , 78 , ?

Select the correct answer


Solution!
Add 2 and 20 alternatively..

Question No 63

M , F , N , G , R , I , S , L , W , P , ?

Select the correct answer


Solution!
Two parallel series one with skipping 0 and 3 alphabets alternatively and other with skipping 0 , 1 , 2,....

Question No 64

87 , 102 , 119 , 138 , 159 , ?

Select the correct answer


Solution!
Adding 15 , 17 , 19,....

Question No 65

AZ , DX , HU , MQ , ?

Select the correct answer


Solution!
skip 2 , 3 , 4,... alphabets to find first character and subtract 1 , 2 , 3,... alphabets to find second character..

Question No 66

25 , 50 , 27 , 46 , 31 , 38 , 39 , ?

Select the correct answer


Solution!
There are two interwoven sequences.
Add 2, 4 and 8 from the sequence starting with 25
and subtract 4, 8 and 16 from the sequence starting with 50.

Question No 67

T , Q , M , H , ?

Select the correct answer


Solution!
Skip 2 , 3 , 4,... alphabets in reverse order..

Question No 68

108 , 189 , 216 , 225 , ?

Select the correct answer


Solution!
Add 81 , 27 , 9 , 3,....

Question No 69

X , U , Q , N , J , G , ?

Select the correct answer


Solution!
Skip 2 and 3 alphabets alternatively in reverse..

Question No 70

Which number is the odd one out, 1, 4, 9, 16, 23, 25, 36

Select the correct answer


Solution!
Each of the numbers except 23, is perfect square..

Question No 71

Which number is the odd one out, 41, 43, 47, 53, 61, 71, 73, 81

Select the correct answer


Solution!
Each of the numbers except 81 is a prime number..

Question No 72

6 , H , 9 , K , 11 , M , 14 , P , 16 , R , 19 , U , 21 , ?

Select the correct answer


Solution!
Add 3 and 2 alternatively in number series and skip 2 and 1 alphabets alternatively.

Question No 73

1 , 1 , 2.5 , 3.5 , 4 , 6 , 5.5 , 8.5 , ? , ?

Select the correct answer


Solution!
There are two interwoven sequences.

+1.5 starting at the first 1, and +2.5 starting at the second 1..

Question No 74

5 , 26 , 131 , 656 , ?

Select the correct answer


Solution!
Multiply by 5 and add 1 each time..

Question No 75

7 , 13 , 24 , 45 , 86 , ?

Select the correct answer


Solution!
Multiply previous term with 2 and subtract 1 , 2 , 3,... to find next term..

Question No 76

E , H , K , N , Q , T , ?

Select the correct answer


Solution!
Skip two alphabets..

Question No 77

3.4 , 6.3 , 9.2 , 12.1 , 15 , ?

Select the correct answer


Solution!
Add 2.9 in previous term to find next term..

Question No 78

3 , 7 , 2 , 47 , ?

Select the correct answer


Solution!
3^2 - 7 = 2
7^2 - 2 = 47
In the same way
2^2 - 47 = -43.

Question No 79

17 , 20 , 19 , 22 , 21 , 24 , 23 , ?

Select the correct answer


Solution!
Add 3 and subtract 1 alternatively..

Question No 80

A , Y , W , U , S , Q , ?

Select the correct answer


Solution!
Skip one alphabet in reverse order..

Question No 81

Which two letters come next in the sequence A , D , I , P , Y , CF , DI , FD , ?

Select the correct answer


Solution!
take the numerical position of each letter in the alphabet to reveal the sequence of consecutive square numbers 1, 4, 9, 16, 25, 36, 49, 64, 81.

Question No 82

Which number is the odd one out, 159, 248, 963, 357, 951, 852 ?

Select the correct answer


Solution!
In the rest there is the same difference between each digit
eg 8 (-3) 5 (-3) 2.

Question No 83

1 , 1 , 2 , ? , 24 , 120 , 720

Select the correct answer


Solution!
Multiply by 1, 2, 3 and so on....

Question No 84

2 , -1 , 2 , -1 , 2 , ?

Select the correct answer


Solution!
Subtract and add 3 alternatively..

Question No 85

36 , 72 , ? , 144 , 180 , 216 , 252

Select the correct answer


Solution!
Add 36 each time..

Question No 86

2 , 20 , 42 , 68 , 98 , ?

Select the correct answer


Solution!
Add 18 , 22 , 26 , 30 , 34,....

Question No 87

1 , 4 , 2 , 5 , 3 , 6 , 4 , ?

Select the correct answer


Solution!
There are two interwoven sequences.

First starts with 1 and second with 4
Add 1 in both series.

Question No 88

3 , 10 , 33 , 104 , ?

Select the correct answer


Solution!
Multiply with 3 and add 1, 3, 5, 7,....

Question No 89

XYZ , WVV , VSR , UPN , ?

Select the correct answer


Solution!
Subtract 1 from first 3 from second and 4 from third character..

Question No 90

14 , 16 , 28 , 32 , 42 , 48 , 56 , 64 , ? , ?

Select the correct answer


Solution!
There are two interwoven sequences, add 14 starting at 14 and add 16 starting at 16..

Question No 91

1/3 , 3/7 , 6/13 , 10/21 , 15/31 , ?

Select the correct answer


Solution!
Add 2 , 3 , 4,... in numerator and add 4 , 6 , 8,... in denominator..

Question No 92

9 , 11 , 17 , 35 , ?

Select the correct answer


Solution!
Add 2 , 6 , 18 , 54,...
here
6 = 2*3
18 = 6*3
and
54 = 18*3.

Question No 93

2 , 7 , 5 , 5 , 8 , 3 , 11 , ?

Select the correct answer


Solution!
Two parallel series one with adding 3 and other with subtracting 2..

Question No 94

0.67 , 0.69 , 0.48 , 0.88 , 0.29 , 1.07 , ?

Select the correct answer


Solution!
There are two series
Subtract 0.19 from the series starting with 0.67 and add 0.19 from the series starting with 0.69..

Question No 95

9 , 16 , 13 , 13 , 17 , 10 , 21 , 7 , ?

Select the correct answer


Solution!
There are two interwoven sequences

Add 4 starting with 9

and subtract 3 starting with 16..

Question No 96

C , G , L , R , ?

Select the correct answer


Solution!
Skip 3 , 4 , 5,... alphabets..

Question No 97

F , I , M , P , T , W , ?

Select the correct answer


Solution!
Skip 2 and 3 alphabets alternatively..

Question No 98

5 , 5 , 3 , -1 , -7 , ?

Select the correct answer


Solution!
Subtract 0 ,2 , 4,....

Question No 99

156 , 76 , 36 , 16 , ?

Select the correct answer


Solution!
Subtract 4 from previous term and then divide it with 2 to find next term..

Question No 100

B , W , F , P , M , E , ?

Select the correct answer


Solution!
Two parallel series one with skipping 3 , 6,... alphabets and other with skipping 6 , 12,... alphabets..

Question No 101

2 , 5 , 10 , 17 , 26 , ?

Select the correct answer


Solution!
add 3 , 5 , 7 , 9 , 11,....

Question No 102

1/32 , 1/16 , 1/4 , 1/2 , 2 , 4 , ?

Select the correct answer


Solution!
Multiply with 2 and 4 alternatively.

Question No 103

Which number is the odd one out, 1, 4, 9, 16, 20, 36, 49

Select the correct answer


Solution!
All other numbers are perfect square of numbers but 20 is not perfect square of any number..

Question No 104

1 , 4 , 9 , 61 , 52 , ?

Select the correct answer


Solution!
Square 1 , 2 , 3,... and change the sequence of digits..

Question No 105

BZ , EW , HT , KQ , ?

Select the correct answer


Solution!
Skip 2 alphabets in forward order to find first alphabet and skip 2 alphabets in reverse order to find 2nd alphabet..

Question No 106

A , E , X , H , U , ?

Select the correct answer


Solution!
Two parallel series, one with skipping two alphabets in reverse order and other with skipping two alphabets in forward order.

Question No 107

6 , 10 , 18 , 34 , 66 , ?

Select the correct answer


Solution!
Add 4 , 8 , 16 , 32,....

Question No 108

4 , 7 , 15 , 29 , 59 , 117 , ?

Select the correct answer


Solution!
Multiply with 2 and subtract and add 1 alternatively..

Question No 109

180 , 140 , 179 , 138 , 177 , 134 , ?

Select the correct answer


Solution!
Two parallel series, one with subtracting 1,2,3,... and other with subtracting 2,4,6,....

Question No 110

Which is the odd number out, 9421 , 7532 , 9854 , 8612 , 6531 , 8541 ?

Select the correct answer


Solution!
All the other numbers have their digits in descending order..

Question No 111

0 , 7 , 15 , 24 , 34 , ?

Select the correct answer


Solution!
add 7 , 8 , 9 , 10 , 11,....

Question No 112

63 , 35 , 15 , 3 , ?

Select the correct answer


Solution!
8^2 - 1 = 63
and
6^2 - 1 = 35
and
4^2 - 1 = 15
and
2^2 - 1 = 3
in the same way
0^2 - 1 = -1.

Question No 113

64521 is to 41256 as 38297 is to..

Select the correct answer


Solution!
A B C D E
6 4 5 2 1

B E D C A
4 1 2 5 6

A B C D E
3 8 2 9 7

B E D C A
8 7 9 2 3.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113

Tips to Solve IQ Series & Number Patterns Test



A number pattern is another IQ series test pattern that checks the numerical ability of the candidate. This is used in many entrance exams too under verbal reasoning. So, what is the number pattern? It is a sequence or pattern followed by a series of numbers. This pattern established a common type of relation among the numbers provided in a series. But, these number patterns also follow certain mathematical rules like addition, subtraction, multiplication, or division. You need to carefully analyze the rules used and follow different hypotheses to get your answer.

Let us analyze this number pattern through an example. Like, there is a number series of 1, 4, 7, 10, 13….. So the next numbers given in solutions would be 16, 19, 22, and 25. Here, the right answer is 16 because in this series the numbers jump 3 each time as 13+3 = 16. This way there can be subtraction, or multiplication, and even division patterns. Even there can be example series where the numbers are getting doubled each time.

To solve these types of number pattern questions your arithmetic or mental math must be strong enough. It is indeed necessary to check each type of IQ series provided in the interview or entrance exams as the questions will vary. Moreover, the latest patterns followed nowadays are nothing much but the pattern of the missing numbers. So, you must be abreast of the basics of the number series. This article will help you to know how solve the number pattern questions easily and tell how shortcut tricks can be used.
Tips to Solve IQ Series & Number Patterns Test


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