Question 1

Find the wrong number in the following series? 1500, 1475, 1448, 1419, 1389, 1355, 1320

Accepted Answer

Take a look at the below sereies : 1500 - 25 = 1475 1475 - 27 = 1448 1448 - 29 = 1419 1419 - 31 = 1388 1388 - 33 = 1355 1355 - 35 = 1320 It clearly shows 1389 is Wrong Number

Question 2

What is the number that should come in the place of question mark ? 1050 420 168 67.2 ?

Accepted Answer

Given series follows the rule of 1050/2.5 = 420 420/2.5 = 168 168/2.5 = 67.2 so 67.2/2.5 = 26.88

Question 3

Find the next number in the series 404, 415, 402, 413, 400, ?

Accepted Answer

The given series 404, 415, 402, 413, 400, ? follows a pattern that, 404 404 + 11 = 415 415 - 13 = 402 402 + 11 = 413 413 - 13 = 400 400 + 11 = 411 Hence the next number in the given number series is 411.

Question 4

Find the next number in the given number sequence? 4, 15, 37, 81, ?

Accepted Answer

The given number series follows a pattern that, 4, 15, 37, 81, ? 4 4 + 11 = 15 15 + 22 = 37 37 + 44 = 81 81 + 88 = 169 Hence, the next number in the sequence is 169.

Question 5

Find the next number in the given number series 1, 3, 10, 41, 206, ?

Accepted Answer

The given number series is 1, 3, 10, 41, 206, ? It follows a pattern that, 1 1 x 2 + 1 = 3 3 x 3 + 1 = 10 10 x 4 + 1 = 41 41 x 5 + 1 = 206 206 x 6 + 1 = 1237 Hence, the next number in the given number series is 1237.

Question 6

What would be the next number in the sequence 52, 56, 48, 64, 32, ?

Accepted Answer

The given number series is 52, 56, 48, 64, 32, … It follows a pattern that, 52 52 + 4 = 56 56 - 8 = 48 48 + 16 = 64 64 - 32 = 32 32 + 64 = 96 Therefore, the required next number in the given number series is 96.

Question 7

Choose the correct alternative that will continue the same pattern and replace 'x' in series 1.5,1.55,1.65,1.8,x

Accepted Answer

The pattern is +0.05,+0.1,+0.15, . . . . so missing term =1.8+0.20=2.0

Question 8

Choose the correct alternative that will continue the same pattern and replace 'x' in series 1,2,5,10,25,50,x,250

Accepted Answer

The pattern is *2,*5/2,*2,*5/2,*2, . . . . . So missing term is 50*(5/2)=125

Question 9

Which Number would come in place of the underline mark in the series. 3, 9, 21, ___ , 93

Accepted Answer

First difference is 6 and second is 12. But if we take third as 18, then fourth difference will be 24. Then 93 can not be the last term. So we have to take the difference as 6, 12, 24 and 48. So Answer is 21+24 = 45

Question 10

bc _ b _ c _ b _ ccb

Accepted Answer

Here 'bccb' repeated 3 times. b c c b | b c c b | b c c b

Question 11

Find the next number in the series 265, 269, 278, 284, ?

Accepted Answer

The pattern in the given series is +4, +9, +16, +25, ... i.e. 2 2 , 3 2 , 4 2 , 5 2 . . . The next number is 284+25 = 309.

Question 12

Find the next number in the given number sequence? 9, 19, 21, 43, 45, ...

Accepted Answer

The given number series 9, 19, 21, 43, 45, ... follows a pattern that ALternately (x 2 + 1) and (x 1 + 2) 9 9 x 2 + 1 = 19 19 x 1 + 2 = 21 21 x 2 + 1 = 43 43 x 1 + 2 = 45 45 x 2 + 1 = 91 Hence, the next number in the given sequence is 91.

Question 13

Next number in the number sequence is 22, 11, 33, 16.5, 49.5, ?

Accepted Answer

The given number series is 22, 11, 33, 16.5, 49.5, ? 22 22 / 2 = 11 11 x 3 = 33 33 / 2 = 16.5 16.5 x 3 = 49.5 49.5 / 2 = 24.75 Hence, the next number series is 24.75.

Question 14

Complete the number series? 11, 12.2, 14.6, 18.2, ?

Accepted Answer

The given number series 11, 12.2, 14.6, 18.2, ? 11 11 + 1.2 = 12.2 12.2 + 2.4 = 14.6 14.6 + 3.6 = 18.2 18.2 + 4.8 = 23 Hence, the next number in the given number series is 23.

Question 15

Find the next number in the given number series? 10, 6, 8, 15, ?

Accepted Answer

The given number series is 10, 6, 8, 15, ? 10 10 x 0.5 + 1 = 6 6 x 1 + 2 = 8 8 x 1.5 + 3 = 15 15 x 2 + 4 = 34 Hence, the next number in the given series is 34.

Question 16

Find out the wrong term in the series 83,92,85,90,85,88

Accepted Answer

The correct pattern is +9,-7,+5,-3,+1 So,85 is wrong term and must be replaced by 90-3=87

Question 17

In the following question, various terms of an alphabet series are given with one or more terms missing as shown by (?). Choose the missing terms out of the given alternatives. Y, B, T, G, O, ?

Accepted Answer

The sequence consists of two series (Y, T, O) and (B, G, ?). The first series consists of 2nd, 7th and 12th letters from the end of English alphabet. The second series consists of 2nd, 7th and 12th letters from the beginning of English alphabet.

Question 18

In each of the following questions a letter-series is given, in which some letters are missing. The missing letters are given in the proper sequence as one of the alternatives. Choose the correct alternatives. _ op _ mo _ n _ _ pnmop _

Accepted Answer

The pattern 'mopn' is repeated.

Question 19

In the following question a letter-series is given, in which some letters are missing. The missing letters are given in the proper sequence as one of the alternatives. Choose the correct alternatives. ab __ d __ aaba __ na _ badna _ b

Accepted Answer

The series is abadna/abadna/abadna/ab. The pattern 'abadna' is repeated

Question 20

In the following questions a letter-series is given, in which some letters are missing. The missing letters are given in the proper sequence as one of the alternatives. Choose the correct alternatives. _ nmmn _ mmnn _ mnnm _

Accepted Answer

The series is nnmm/nnmn/nnmm/nnmm. The pattern 'nnmm' is repeated.

Number Series Questions