Question 1

Find the odd man out of the series 4, 5, 9, 18, 32, 59

Accepted Answer

In the given series, 2nd term = 1st term + 1 2 = 4 +1 = 5 3rd term = 2nd term + 2 2 =5+4= 9 4th term = 3rd term + 3 2 =9+9=18 5th term = 4th term + 4 2 = 18+16=34 Therefore, odd term is 32

Question 2

_ tu _ rt _ s _ _ usrtu _

Accepted Answer

The series rtus/rtus/rtus/rtus. Thus, the pattern 'rtus' is repeated.

Question 3

Find the missing number in series 1 4 27

Accepted Answer

It follows the rule that 1 2x2 3x3x3 4x4x4x4 5x5x5x5x5 So the missing number is 4x4x4x4 = 256.

Question 4

What will be the next term in BKS, DJT, FIU, HHV, __

Accepted Answer

Here the first letter of the group is moved with a gap of one letter, the second letter of the group is backwardness and the third letter of the group is forwardness proceeding like this we get the letter group "JGW"

Question 5

Find the wrong number in the given series : 26, 20, 16, 11, 8, 6, 5

Accepted Answer

26 - 6 = 20 20 - 5 = 15 15 - 4 = 11 11 - 3 = 8 8 - 2 = 6 6 - 1 = 5 Therefore, 16 is wrong number.

Question 6

Find the next number in the series 5, 8, 16, 19, 57, 60, .....

Accepted Answer

The pattern is x1+3, x 2, x1+3, x 3, x1+3, x 4 The next number=60x4=240

Question 7

Find out the wrong term in the series 3, 7, 15, 39, 63, 127, 255, 511

Accepted Answer

The correct pattern is *2+1 So, 39 is wrong and must be replaced by (15 * 2 + 1) = 31

Question 8

Choose the missing terms out of the given alternatives Y, B, T, G, O, ?

Accepted Answer

The given sequence is a combination of two series: i.)Y,T, O and ii.)B, G, ? i. consists of 2nd, 7th, 12th letters from end of English alphabet,while ii. consists of 2nd, 7th, 12th letters from beginning of English alphabet So, the missing letter in ii.) is the 12th letter from the beginning of English alphabet,which is L.

Question 9

In the following question, various terms of an alphanumerical series are given with one or more terms missing as shown by (?). Choose the missing terms out of the given alternatives. BMO, EOQ, HQS, ?

Accepted Answer

The first letter moves 3 steps forward. The second and third letters move 2 steps forward.

Question 10

In the following question, various terms of an alphanumerical series are given with one or more terms missing as shown by (?). Choose the missing terms out of the given alternatives. EJO, TYD, INS, XCH ?

Accepted Answer

There is a gap of four letters between the first and second, the second and third letters. There is a gap of four letters between the last letter and the first letter of the next term.

Question 11

What letters will fill the blank? Z, X, V, T, R, __,__

Accepted Answer

Here the letter series is alternative reverse order series. So we get P, N.

Question 12

In following question, a number series is given with one term missing. Choose the correct alternative for these sequence. 24, 60, 120, 210, ?

Accepted Answer

3 x 3 x 3 = 27 - 3 = 24 4 x 4 x 4 = 64 - 4 = 60 5 x 5 x 5 = 125 - 5 = 120 6 x 6 x 6 = 216 - 6 = 210 7 x 7 x 7 = 343 - 7 = 336

Question 13

Find the next number in the given sequence? 1, 2, 6, 21, 88, ?

Accepted Answer

The given series is 1, 2, 6, 21, 88, ? 1 1 x 1 + 1 = 2 2 x 2 + 2 = 6 6 x 3 + 3 = 21 21 x 4 + 4 = 88 88 x 5 + 5 = 445 Hence, the next number in the given number sequence is 445.

Question 14

Which fraction comes next in the sequence 23, 13, 527, 781, ?

Accepted Answer

Clearly, the numerators of the fractions in the given sequence follow the series of 2, 3, 5, 7,... and the denominator follows 3, 9, 27, 81, 243, ... Then, the next term in the given sequence is 9 3 5 = 9 243 = 1 27 .

Question 15

What is the next number of the following sequence ? 21, 77, 165, 285, ......

Accepted Answer

437

Question 16

_ po _ mp _ n _ _ onmpo_.

Accepted Answer

The pattern 'mpon' is repeated.

Question 17

Look at the series : 3, 7, 24, 11, __, 19, 19,... What number should fill the blank ?

Accepted Answer

Two series alternate here, with every third number following a different pattern. In the main series, 4 is added to each number to arrive the next. In alternate series, 5 is subtracted from each number t arrive the next number. Here in the main series 3 + 4 = 7 7 + 4 = 11 11 + 4 = 15 15 + 4 = 19 In alternate series 24 - 5 = 19 19 - 5 = 14...

Question 18

Choose the correct alternative that will continue the same pattern and replace 'x' in series 5,15,17,85,89,623,x

Accepted Answer

The pattern is *3,+2,*5,+4,*7,+6, . . . . . So missing term is 623+6=629

Question 19

Find the missing number in the given number series? 1 8 36 ? 1100 7701

Accepted Answer

The given number series is 1 8 36 ? 1100 7701 It follows a pattern that, 1 1 x 3 + 5 = 8 8 x 4 + 4 = 36 36 x 5 + 3 = 183 183 x 6 + 2 = 1100 1100 x 7 + 1 = 7701 Hence, the missing number in the given series is 183.

Question 20

Find out the wrong term in the series 125, 126, 124, 127, 123, 129

Accepted Answer

The correct pattern is +1, -2, +3, -4, +5, . . . . So,129 wrong and must be replaced by 123 + 5 = 128

Number Series Questions