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Monday, 23 September 2024

Series Completion - Section 4

Series Completion - Section 4

Directions to Solve

In each of the following questions, 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.

1.WFB, TGD, QHG, ?

A.NIJ

B.NIK

C.NJK

D.OIK

E.PJK

Answer: Option-B

Explanation:

2. AZ, GT, MN, ?, YB

A.JH

B.SH

C.SK

D.TS

Answer: Option-B

Explanation:

3. H, I, K, N, ?

A.O

B.Q

C.R

D.S

Answer: Option-C

Explanation:

4. Z, S, W, O, T, K, Q, G, ?, ?

A.N, C

B.N, D

C.O, C

D.O, D

Answer: Option-A

Explanation:The given sequence is a combination of two series:

I. Z, W, T, Q, ? and II. S, O, k, G, ?

5. b e d f ? h j ? l

A. i m

B. m i

C. i n

D. j m

Answer: Option-A

Explanation:The series may be divided into groups as shown:

b e d / f ? h / j ? l

Clearly in the first group, the second and third letters are respectively three and two steps ahead of the first letter.

A similar pattern would follow in the second and third groups.

6. A, G, L, P, S, ?

A.U

B.W

C.X

D.Y

Answer: Option-A

Explanation:

7. ajs, gpy, ?, sbk, yhq

A. dmv

B. mve

C. oua

D. qzi

Answer: Option-B

Explanation:

8. AB, DEF, HIJK, ?, STUVWX

A. LMNO

B. LMNOP

C. MNOPQ

D. QRSTU

Answer: Option-C

Explanation:

The number of letters in the terms of the given series increases by one at each step.

The first letter of each term is two steps ahead of the last letter of the preceding term.

However, each term consists of consecutive letters in order.

9. Y, B, T, G, O, ?

A. N

B. M

C. L

D. K

Answer: Option-C

Explanation:The given sequence is a combination of two series :

I. Y,T, O and II. B, G, ?

I consists of 2nd, 7th and 12th letters from the end of the English alphabet, while

II consists of 2nd, 7th and 12th letters from the beginning of the English alphabet.

So, the missing letter in II is the 12th letter from the beginning of the English alphabet, which is L.

10. C, Z, F, X, I, V, L, T, O, ?, ?

A. O, P

B. P, Q

C. R, R

D. S, R

Answer: Option-C

Explanation: The given sequence is a combination of two series:

I. C, F, I, L, O, ? and II. Z, X, V, T, ?

11. A, B, B, D, C, F, D; H, E, ?, ?

A. E, F

B. F, G

C. F, I

D. J, F

E. J, K

Answer: Option-D

Explanation:

The given sequence is a combination of two series :

I. 1st, 3rd, 5th, 7th, 9th, 11th terms i.e. A, B, C, D, E, ? II. 2nd, 4th, 6th, 8th, 10th terms i.e. B, D, F, H, ?

Clearly, I consists of consecutive letters while II consists of alternate letters. So, the missing letter in I is F, while that in II is J. So, the missing terms i.e. 10th and 11th terms are J and F respectively.

12. Z, X, S, I, R, R, ?, ?

A. G,I

B. J, I

C. J,K

D. K,M

Answer: Option-A

Explanation:

Note that the numbers representing the difference between the consecutive terms of the series again from a series - 2, 5, 10, 17, 26, 37, 50 - in which the pattern is +3, +5, +7, +9, +11, +13.

13. AYBZC, DWEXF, GUHVI, JSKTL, ?

A. MQORN

B. MQNRO

C. NQMOR

D. QMONR

Answer: Option-B

Explanation:

14. T, R, P, N, L, ?, ?

A. J, G

B. J, H

C. K, H

D. K, I

Answer: Option-B

Explanation:

15. PMT, OOS, NQR, MSQ, ?

A. LUP

B. LVP

C. LVR

D. LWP

Answer: Option-A

Explanation:

16. A, B, N, C, D, O, E, F, P, ?, ?, ?

A. G, H, I

B. G, H, J

C. G, H, Q

D. J, K, L

Answer: Option-C

Explanation: The given series may be divided into 2 groups :

I. A, B, C, D, E, F, ?, ? and II. N, O, P, ?

Clearly, the given series consists of two terms of I followed by one term of II.

The missing terms in I are G and H while the missing term in II is Q.

17. GH, JL, NQ, SW, YD, ?

A. EJ

B. FJ

C. EL

D. FL

Answer: Option-D

Explanation:

18. R, U, X, A, D, ?

A. F

B. G

C. H

D. I

Answer: Option- B

Explanation:

19. AYD, BVF, DRH, ?, KGL

A. FMI

B. GMJ

C. GLJ

D. HLK

Answer: Option- B

Explanation:

20. AZ, CX, FU, ?

A. IR

B. IV

C. JQ

D. KP

Answer: Option- C

Explanation:

21. ADVENTURE, DVENTURE, DVENTUR, ?, VENTU

A. DVENT

B. VENTURE

C. VENTUR

D. DVENTU

E. None of these

Answer: Option-C

Explanation: One letter from the beginning and one from the end of a term are removed, one by one, in alternate steps.

22. A, D, H, M, ?, Z

A. T

B. G

C. N

D. S

Answer: Option-D

Explanation:

23. PERPENDICULAR, ERPENDICULA, RPENDICUL, ?

A. PENDICUL

B. PENDIC

C. ENDIC

D. ENDICU

E. None of these

Answer: Option-E

Explanation: Each term of the series is obtained by removing two letters from the preceding term one from the beginning and one from the end, So, the missing term is PENDICU.

24. Z, ?, T, ?, N, ?, H, ?, B

A. W, Q, K, E

B. W, R, K, E

C. X, Q, K, E

D. X, R, K, E

Answer: Option-A

Explanation:

25. ejo tyd ins xch ?

A. nrw

B. mrw

C. msx

D. nsx

E. nsw

Answer: Option-B

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

26. Z, U, Q, ?, L

A. I

B. K

C. M

D. N

Answer: Option-D

Explanation:

27. M, N, O, L, R, I, V, ?

A. A

B. E

C. F

D. H

E. Z

Answer: Option-B

Explanation: The given sequence is a combination of two series:

I. M, O, R, V and II. N, L, I, ?

28. B, D, F, I, L, P, ?

A. R

B. S

C. T

D. U

Answer: Option-C

Explanation:

29. ATTRIBUTION, TTRIBUTIO, RIBUTIO, IBUTI, ?

A. IBU

B. UT

C. UTI

D. BUT

E. None of these

Answer: Option-C

Explanation:In the first step, one letter from the beginning and one from the end of a term are removed to give the next term. In the second step, two letters from the beginning of a term are removed.

These two steps are repeated alternately.

30. DHL, PTX, BFJ, ?

A. CGK

B. KOS

C. NRV

D. RVZ

Answer: Option-C

Explanation:

31. A, CD, GHI, ?, UVWXY

A. LMNO

B. MNO

C. MNOP

D. NOPQ

Answer: Option-C

Explanation: Each term consists of consecutive letters in order. The number of letters in the terms goes on increasing by one at each step.

Also, there is a gap of one letter between the last letter of the first term and the first letter of the second term; a gap of two letters between the last letter of the second term and the first letter of the third term; and so on.

So, there should be a gap of three letters between the last letter of the third term and the first letter of the desired term.

32. Z, Y, X, U, T, S, P, O, N, K, ?, ?

A. H,G

B. H, I

C. I,H

D. J, I

Answer: Option-D

Explanation:

33. U, B, I, P, W, ?

A. D

B. F

C. Q

D. Z

Answer: Option-A

Explanation:

34. AI, BJ, CK, ?

A. DL

B. DM

C GH

D. LM

Answer: Option-A

Explanation:

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