Number Patterns IQ Test Practice

Question No 1

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

Select the correct answer

61 71 73 81

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

Question No 2

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

Select the correct answer

10 45 54 75

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

Question No 3

3 , 6 , 9 , 12 , 15 , ?

Select the correct answer

21 18 24 19

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

Question No 4

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

Select the correct answer

233 234 235 236

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

Question No 5

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

Select the correct answer

27 100 125 343

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

Question No 6

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

Select the correct answer

9, 15 11, 9 7, 13 7, 11

Solution!
There are two interwoven sequences.

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

Question No 7

3925 and 277 , 4697 and 2416 , 6257 and ?

Select the correct answer

1212 409 32509 587

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 8

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

Select the correct answer

21 17 14 3

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

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

Question No 9

2 , 6 , 18 , 54 , 162 , ?

Select the correct answer

324 648 486 238

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

Question No 10

3 , 10 , 33 , 104 , ?

Select the correct answer

219 319 619 1019

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

Question No 11

87 , 102 , 119 , 138 , 159 , ?

Select the correct answer

182 180 178 176

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

Question No 12

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

Select the correct answer

105 62 121 107

Solution!
Two parallel series both with adding 12..

Question No 13

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

Select the correct answer

22, 64 24, 76 32, 40 50, 60

Solution!
There are two sequences interwoven.

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

Question No 14

2 , 6 , 15 , 34 , 73 , ?

Select the correct answer

146 98 186 152

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

Question No 15

20 , 30 , 45 , ?

Select the correct answer

70.5 60 67.5 61.5

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

Question No 16

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

Select the correct answer

176 128 126 174

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

Question No 17

100 , 96.75 , 93.5 , 90.25 , 87 , ?

Select the correct answer

81 50.4 62 83.75

Solution!
Deduct 3.25 each time..

Question No 18

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

Select the correct answer

W X Y Z

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

Question No 19

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

Select the correct answer

263 383 331 551

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

Question No 20

100 , 50 , 200 , 25 , 400 , ?

Select the correct answer

14.5 12 13 12.5

Solution!
There are two interwoven sequences.

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

Question No 21

1.5 , 3 , 5.5 , 9 , 13.5 , ?

Select the correct answer

23 19 21 25

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

Question No 22

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

Select the correct answer

X A B Z

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

Question No 23

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

Select the correct answer

K O X Z

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

Question No 24

1 , 4 , 9 , 61 , 52 , ?

Select the correct answer

1023 968 319 63

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

Question No 25

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

Select the correct answer

98 88 80 82

Solution!
Add 2 and 20 alternatively..

Question No 26

XYZ , WVV , VSR , UPN , ?

Select the correct answer

NSG ZPO BOX TMJ

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

Question No 27

492 , 366 , 189 , 810 , ?

Select the correct answer

1260 675 88 1015

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

Question No 28

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

Select the correct answer

50, 80 70, 80 50, 60 90, 80

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

Question No 29

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

Select the correct answer

86 98 70 112

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

Question No 30

BZ , EW , HT , KQ , ?

Select the correct answer

OP JJ NN AZ

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

Question No 31

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

Select the correct answer

N M O P

Solution!
Skip one alphabet..

Question No 32

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

Select the correct answer

28 21 24 30

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

Question No 33

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

Select the correct answer

R W X Y

Solution!
Skip two alphabets..

Question No 34

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

Select the correct answer

26 25 28 27

Solution!
Add 3 and subtract 1 alternatively..

Question No 35

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

Select the correct answer

A E I O

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 36

5 , 26 , 131 , 656 , ?

Select the correct answer

3298 3260 3200 3281

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

Question No 37

108 , 189 , 216 , 225 , ?

Select the correct answer

512 413 124 228

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

Question No 38

78214 and 292 , 38421 and 459 , 69517 and ?

Select the correct answer

712 586 58987 623

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

So, 69 + 517 = 586.

Question No 39

2 , 5.75 , ? , 13.25 , 17 , 20.75

Select the correct answer

9 8 9.5 12.5

Solution!
Add 3.75 each time..

Question No 40

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

Select the correct answer

9 6 7 10

Solution!
There are two interwoven sequences.

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

Question No 41

A , B , D , I , ?

Select the correct answer

O S W Z

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

Question No 42

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

Select the correct answer

27, 32 26, 32 25, 31 26, 31

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

Question No 43

7/2 , 4 , 7 , 14 , ?

Select the correct answer

31 37 49 67

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

Question No 44

2 , 20 , 42 , 68 , 98 , ?

Select the correct answer

132 232 332 432

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

Question No 45

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

Select the correct answer

0.92 0.10 0.32 2.17

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 46

C , F , J , O , ?

Select the correct answer

C O U I

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

Question No 47

156 , 76 , 36 , 16 , ?

Select the correct answer

6 8 -6 -8

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

Question No 48

B , C , E , G , K , ?

Select the correct answer

M Q O X

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

Question No 49

64521 is to 41256 as 38297 is to..

Select the correct answer

92837 29873 89732 87923

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.

Question No 50

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

Select the correct answer

2 -3 -1 3

Solution!
Subtract and add 3 alternatively..

Question No 51

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

Select the correct answer

6748 4725 9797 3025

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 52

759 , 675 , 335 , 165 , ?

Select the correct answer

125 113 150 80

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 53

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

Select the correct answer

64 67 62 72

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

Question No 54

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

Select the correct answer

36 72 196 225

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

Question No 55

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

Select the correct answer

Z K Y A

Solution!
Skip 2 and 3 alphabets alternatively..

Question No 56

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

Select the correct answer

1 9 20 49

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

Question No 57

O , P , R , U , ?

Select the correct answer

W X Y Z

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

Question No 58

5 , 2.5 , 1.25 , 0.625 , ?

Select the correct answer

0.213 0.3125 0.425 0.1

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

Question No 59

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

Select the correct answer

4 25 24 6

Solution!
There are two interwoven sequences

Add 4 starting with 9

and subtract 3 starting with 16..

Question No 60

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

Select the correct answer

16 1/8 8 12

Solution!
Multiply with 2 and 4 alternatively.

Question No 61

B , L , R , T , ?

Select the correct answer

Z V U R

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

Question No 62

AZ , DX , HU , MQ , ?

Select the correct answer

SL ZA VT PW

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

Question No 63

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

Select the correct answer

O D Z P

Solution!
Skip one alphabet in reverse order..

Question No 64

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

Select the correct answer

14 7 2 1

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

Question No 65

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

Select the correct answer

-15 15 -13 13

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

Question No 66

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

Select the correct answer

27 55 43 22

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

8 , 16 , 32 , 64 , 128 , ?

Select the correct answer

512 312 256 196

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

Question No 68

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

Select the correct answer

751 853 981 532

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

Question No 69

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

Select the correct answer

A C E G

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

Question No 70

F , O , T , W , ?

Select the correct answer

Y Z A B

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

Question No 71

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

Select the correct answer

396 427 671 264

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

Question No 72

B , D , G , K , P , ?

Select the correct answer

A L X V

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

Question No 73

2 , 14 , 32 , 56 , 86 , ?

Select the correct answer

108 114 122 128

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

Question No 74

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

Select the correct answer

58 66 72 78

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

Question No 75

1000 , 971.4 , 942.8 , 914.2 , 885.6 , ?

Select the correct answer

847 853 857 872

Solution!
Deduct 28.6 each time..

Question No 76

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

Select the correct answer

26 24 21 18

Solution!
All numbers are even except 21..

Question No 77

1 , 1 , 3 , 15 , 105 , ?

Select the correct answer

945 954 943 949

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

Question No 78

A , E , X , H , U , ?

Select the correct answer

R K S J

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

Question No 79

C , G , L , R , ?

Select the correct answer

Y W U Z

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

Question No 80

0 , 7 , 15 , 24 , 34 , ?

Select the correct answer

43 45 53 55

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

Question No 81

2 , 5 , 10 , 17 , 26 , ?

Select the correct answer

41 39 37 35

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

Question No 82

9 , 11 , 17 , 35 , ?

Select the correct answer

108 99 114 89

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

Question No 83

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

Select the correct answer

8612 6531 7532 9854

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

Question No 84

7 , 10 , 25 , 94 , 463 , ?

Select the correct answer

2770 2110 1440 822

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 85

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

Select the correct answer

108 98 110 100

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

Question No 86

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

Select the correct answer

16 729/16 12 523/24

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

Question No 87

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

Select the correct answer

9 23 25 36

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

Question No 88

C , F , K , R , ?

Select the correct answer

A Y Z B

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

Question No 89

0 , 3 , 8 , 15 , ?

Select the correct answer

22 24 27 21

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

Question No 90

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

Select the correct answer

18 12 48 6

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

Question No 91

T , Q , M , H , ?

Select the correct answer

N B A D

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

Question No 92

3 , 7 , 2 , 47 , ?

Select the correct answer

137 -43 -137 43

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

Question No 93

1 , 2 , 4 , 8 , ?

Select the correct answer

16 24 32 12

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

Question No 94

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

Select the correct answer

248 852 159 357

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

Question No 95

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

Select the correct answer

HA GK JB RA

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 96

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

Select the correct answer

21/41 23/45 21/43 30/62

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

Question No 97

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

Select the correct answer

6132798 3572612 6471589 4250304

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

Question No 98

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

Select the correct answer

50 26 37 64

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 99

6 , 10 , 18 , 34 , 66 , ?

Select the correct answer

108 130 144 156

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

Question No 100

100 , 97 , 91 , 82 , ?

Select the correct answer

72.5 70 75 64

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

Question No 101

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

Select the correct answer

B W F Y

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

Question No 102

7 , 13 , 24 , 45 , 86 , ?

Select the correct answer

123 223 267 167

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

Question No 103

F , G , I , L , P , ?

Select the correct answer

S T U V

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

Question No 104

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

Select the correct answer

45, 60 62, 72 36, 54 30, 44

Solution!
Add 9 each time..

Question No 105

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

Select the correct answer

106 108 110 112

Solution!
Add 36 each time..

Question No 106

63 , 35 , 15 , 3 , ?

Select the correct answer

10 3 -1 -3

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 107

17 , 34 , 51 , 68 , ?

Select the correct answer

90 67 85 80

Solution!
Add 17 each time..

Question No 108

1 , 2.65 , 4.3 , 5.95 , 7.6 , ?

Select the correct answer

10 11.3 9.25 8.63

Solution!
1.65 is adding in each term..

Question No 109

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

Select the correct answer

6/1024 6/1296 6/1828 6/868

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 110

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

Select the correct answer

70, 26 75, 26 75, 24 72, 24

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 111

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

Select the correct answer

19 17 5 12

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

Question No 112

7 , 12 , 19 , 28 , ?

Select the correct answer

41 37 35 39

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

Question No 113

3.4 , 6.3 , 9.2 , 12.1 , 15 , ?

Select the correct answer

17.9 19.0 16.9 17.0

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

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.

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