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Series Completion

Description: There are 15 questions on the topic Series completion for those students who are preparing for ssc, fci and bank po/clerk.
Number of Questions: 15
Created by:
Tags: Series completion Letter Repeating series Time and Work Ratio/Proportion & Variation Series Completion Series Letter Repeating Series
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Which of the following sets of letters, when sequentially placed at the gaps in the given letter series, shall complete it?

a s _ d _ _ s d _ s s _ _ _ s d

  1. ssaadas

  2. sasdaas

  3. sasadas

  4. sasadsa

  5. saasdas

Show answer
Correct Option: C
Explanation:

The pattern of series: assd/assd/assd/assd. So, sasadas is complete the series properly. Therefore, it is the correct answer.

Which of the following sets of letters, when sequentially placed at the gaps in the given letter series, shall complete it?

_ s t _ _ s t a _ _ t a t _ _ a

  1. tatttss

  2. tattsts

  3. atttsst

  4. tattsst

  5. tttasst

Show answer
Correct Option: D
Explanation:

Because the given pattern of series is: tsta/tsta/tsta/tsta. So, tattsst properly follows the given pattern and is the correct answer.

Which of the following sets of letters, when sequentially placed at the gaps in the given letter series, shall complete it?

m _ _ _ a n m _ n m a _

  1. naman

  2. anman

  3. anamn

  4. anmna

  5. manan

Show answer
Correct Option: B
Explanation:

It is observable that pattern of the series is: man/man/man/man. So, anman is the correct answer.

Directions: Complete the following series:

B, D, G, K, P, ?

  1. R

  2. S

  3. T

  4. V

  5. None of these

Show answer
Correct Option: D
Explanation:

Given pattern of the series is: B(+2)→D, D(+3)→G, G(+4)→K, K(+5)→P, and so on. So, the next term is = P(+6) =>V.

Directions: What will come in place of the question mark (?) in the following number series?

9, 31, 161, 1135, ?

  1. 10215

  2. 10225

  3. 10220

  4. 10235

  5. None of these

Show answer
Correct Option: B
Explanation:

The pattern is 9, 9 x 3 + 4 = 31, 31 x 5 + 6 = 161, 161 x 7 + 8 = 1135 and so on. So, the missing term is 1135 x 9 + 10 = 10225.

Directions: Complete the following series:

E, J, O, T, Y, ?

  1. D

  2. A

  3. B

  4. C

  5. None of these

Show answer
Correct Option: A
Explanation:

Given pattern of the series is: E(+5) => J,J(5) => O,O(+5) => T,T(+5) => Y, and so on. Similarly, Y(+5) => D.

Directions: Complete the following series:

J, H, K, F, M, ?

  1. E

  2. D

  3. V

  4. C

  5. None of these

Show answer
Correct Option: B
Explanation:

Pattern of the series is: J (-1) => H,H (+3) => K,K (-5) => F,F (+7) => M, and so on. So, the next term is: M (-9) => D.

Which of the following sets of letters, when sequentially placed at the gaps in the given letter-series, shall complete it?

_ a _ c a a _ c a _ _ c a _ c c

  1. accaca

  2. aaccca

  3. accaac

  4. cacaca

  5. acccaa

Show answer
Correct Option: A
Explanation:

Pattern of the series is aacc/aacc/aacc/aacc/aacc. So, the correct answer is accaca.

Directions: Which of the following sets of letters, when sequentially placed at the gaps in the given letter series, shall complete it?

_ _ d a _ d a c _ _ c d

  1. accda

  2. accad

  3. cacda

  4. acdca

  5. aaccd

Show answer
Correct Option: A
Explanation:

The pattern of the series is: acd/acd/acd/acd. So, on putting these letters in place of the blanks, the series gets completed. So, it is the correct answer.

A series is given with one term missing. Choose the correct alternative from the given options that will complete the series.

  • 1, 0, 3, 8, 15, 24, ?

  1. 36

  2. 37

  3. 35

  4. 40

  5. None of these

Show answer
Correct Option: C
Explanation:

The pattern is 0 x 0 – 1 = - 1, 1 x 1 – 1 = 0, 2 x 2 – 1 = 3, 3 x 3 – 1 = 8, 4 x 4 – 1 = 15, 5 x 5 – 1 = 24, and so on. So, missing term = 6 x 6 – 1 = 35

Directions: Complete the following series:

D, L, S, Y, D, H, ?

  1. G

  2. J

  3. K

  4. I

  5. None of these

Show answer
Correct Option: C
Explanation:

Given pattern of the series is: D (+8) => L, L (+7) => S, S (+6) => Y, Y (+5) => D, D (+4) => H, and so on. So, the next term of the series is: H (+3) => K.

Directions: Complete the following series:

F, I, J, M, N, ?

  1. Q

  2. P

  3. O

  4. R

  5. None of these

Show answer
Correct Option: A
Explanation:

Pattern of the series is: F (+3) => I, I (+1) => J, J (+3) => M, M (+1) => N, and so on. So, the next term of the series is: N (+3) => Q.

Directions: What will come in place of the question mark (?) in the following number series?

6, 60, 210, 504, 990, ?

  1. 1320

  2. 336

  3. 720

  4. 1716

  5. None of these

Show answer
Correct Option: D
Explanation:

The given pattern of the series is: 1 x 2 x 3 = 6, 3 x 4 x 5 = 60, 5 x 6 x 7 = 210, 7 x 8 x 9 = 504, 9 x 10 x 11 = 990 and so on. So, the missing term is 11 x 12 x 13 = 1716.

A series is given with one term missing. Choose the correct alternative from the given options that will complete the series.

501, 512, 534, 578, 666, (?)

  1. 821

  2. 842

  3. 810

  4. 832

  5. None of these

Show answer
Correct Option: B
Explanation:

Pattern of the series is: 501 + 11 = 512, 512 + 11 x 2 = 534, 534 + 22 x 2 = 578, 578 + 2 x 44 = 666, and so on. So, the missing term is 666 + 44 x 2 = 842.

Directions: What will come in place of the question mark (?) in the following number series?

33, 53, 75, 95, 117, ?

  1. 127

  2. 139

  3. 128

  4. 137

  5. None of these

Show answer
Correct Option: D
Explanation:

Pattern of the series: 33 + 20 = 53, 53 + 22 = 75, 75 + 20 = 95, 95 + 22 = 117 and so on. Similarly, 117 + 20 = 137.

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