Series and Number Patterns IQ Test Practice Questions

Numbers Patterns



Question No 1

6 , 10 , 18 , 34 , 66 , ?

Select the correct answer


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

Question No 2

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 3

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

Select the correct answer


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

Question No 4

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 5

1 , 2 , 4 , 8 , ?

Select the correct answer


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

Question No 6

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 7

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 8

0 , 7 , 15 , 24 , 34 , ?

Select the correct answer


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

Question No 9

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 10

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 11

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 12

3 , 10 , 33 , 104 , ?

Select the correct answer


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

Question No 13

A , B , D , I , ?

Select the correct answer


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

Question No 14

87 , 102 , 119 , 138 , 159 , ?

Select the correct answer


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

Question No 15

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

Select the correct answer


Solution!
Skip 2 and 3 alphabets alternatively..

Question No 16

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 17

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 18

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 19

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

Select the correct answer


Solution!
Multiply with 2 and 4 alternatively.

Question No 20

2 , 14 , 32 , 56 , 86 , ?

Select the correct answer


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

Question No 21

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

Select the correct answer


Solution!
Subtract and add 3 alternatively..

Question No 22

7/2 , 4 , 7 , 14 , ?

Select the correct answer


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

Question No 23

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 24

2 , 5.75 , ? , 13.25 , 17 , 20.75

Select the correct answer


Solution!
Add 3.75 each time..

Question No 25

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 26

5 , 26 , 131 , 656 , ?

Select the correct answer


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

Question No 27

5 , 2.5 , 1.25 , 0.625 , ?

Select the correct answer


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

Question No 28

1 , 2.65 , 4.3 , 5.95 , 7.6 , ?

Select the correct answer


Solution!
1.65 is adding in each term..

Question No 29

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 30

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 31

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

Select the correct answer


Solution!
Add 3 and subtract 1 alternatively..

Question No 32

C , F , J , O , ?

Select the correct answer


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

Question No 33

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 34

B , D , G , K , P , ?

Select the correct answer


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

Question No 35

2 , 5 , 10 , 17 , 26 , ?

Select the correct answer


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

Question No 36

XYZ , WVV , VSR , UPN , ?

Select the correct answer


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

Question No 37

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.

Question No 38

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

Select the correct answer


Solution!
Add 9 each time..

Question No 39

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 40

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 41

17 , 34 , 51 , 68 , ?

Select the correct answer


Solution!
Add 17 each time..

Question No 42

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 43

C , F , K , R , ?

Select the correct answer


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

Question No 44

F , G , I , L , P , ?

Select the correct answer


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

Question No 45

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 46

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 47

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 48

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 49

B , L , R , T , ?

Select the correct answer


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

Question No 50

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 51

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 52

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 53

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 54

20 , 30 , 45 , ?

Select the correct answer


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

Question No 55

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

Select the correct answer


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

Question No 56

T , Q , M , H , ?

Select the correct answer


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

Question No 57

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 58

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 59

108 , 189 , 216 , 225 , ?

Select the correct answer


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

Question No 60

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 61

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 62

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 63

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 64

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

Select the correct answer


Solution!
Add 36 each time..

Question No 65

3 , 6 , 9 , 12 , 15 , ?

Select the correct answer


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

Question No 66

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

Select the correct answer


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

Question No 67

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

Select the correct answer


Solution!
Skip one alphabet..

Question No 68

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 69

7 , 12 , 19 , 28 , ?

Select the correct answer


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

Question No 70

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 71

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 72

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 73

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 74

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 75

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

Select the correct answer


Solution!
Two parallel series both with adding 12..

Question No 76

1 , 4 , 9 , 61 , 52 , ?

Select the correct answer


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

Question No 77

-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 78

2 , 6 , 18 , 54 , 162 , ?

Select the correct answer


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

Question No 79

2 , 20 , 42 , 68 , 98 , ?

Select the correct answer


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

Question No 80

B , C , E , G , K , ?

Select the correct answer


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

Question No 81

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 82

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 83

F , O , T , W , ?

Select the correct answer


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

Question No 84

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 85

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 86

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 87

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

Select the correct answer


Solution!
Add 2 and 20 alternatively..

Question No 88

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 89

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

Select the correct answer


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

Question No 90

100 , 96.75 , 93.5 , 90.25 , 87 , ?

Select the correct answer


Solution!
Deduct 3.25 each time..

Question No 91

1000 , 971.4 , 942.8 , 914.2 , 885.6 , ?

Select the correct answer


Solution!
Deduct 28.6 each time..

Question No 92

1 , 1 , 3 , 15 , 105 , ?

Select the correct answer


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

Question No 93

2 , 6 , 15 , 34 , 73 , ?

Select the correct answer


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

Question No 94

C , G , L , R , ?

Select the correct answer


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

Question No 95

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 96

O , P , R , U , ?

Select the correct answer


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

Question No 97

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 98

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 99

492 , 366 , 189 , 810 , ?

Select the correct answer


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

Question No 100

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

Select the correct answer


Solution!
Skip two alphabets..

Question No 101

100 , 97 , 91 , 82 , ?

Select the correct answer


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

Question No 102

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 103

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 104

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 105

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 106

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

Select the correct answer


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

Question No 107

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 108

0 , 3 , 8 , 15 , ?

Select the correct answer


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

Question No 109

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

Select the correct answer


Solution!
Skip one alphabet in reverse order..

Question No 110

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

Select the correct answer


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

Question No 111

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

Select the correct answer


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

Question No 112

8 , 16 , 32 , 64 , 128 , ?

Select the correct answer


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

Question No 113

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.
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