Reasoning - Questions on Alphabetical Series

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Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

1. ___ utt ___ tt ___ ttu ___   

  1. t u u t
  2. u u t t
  3. t t u t
  4. t u t u

2. a __ cdd __ bcd __ abc __ dab __  

  1. b a d d c
  2. a b d d c
  3. b a d c d
  4. b d a d c

3. cc ___ ccbc ___ accbcc ___ c ___ b  

  1. a c a c
  2. a b a c
  3. a b a b
  4. a a b c

4. H ___ JH ___ IJHHI ___ HH ___ JH  

  1. I H J I
  2. H I H I
  3. I H I J
  4. H J H J

5. ZYX ___ W ___ YZZ ___ XWWXY ___  

  1. W X Y Z
  2. W Y X Z
  3. W X Z Y
  4. X Y Z W

6. a __ da __ dd __ ad __ a  

  1. a a d d
  2. d a a a
  3. a d a d
  4. d a a d

7. a __ n __ b __ __ ncb __ __ ncb  

  1. b c a b a b
  2. b a c b a b
  3. a b c b c b
  4. a b b b c c

8. __ aa __ ba __ bb __ ab __ aab  

  1. b a b a b
  2. a a a b b
  3. b b a a b
  4. b b b a a

9. m __ pm __ p __ ap __ a __ ma __  

  1. a m a m m p
  2. a a m m p p
  3. a m m a p m
  4. a a m p a p

10. p __ r __ qpp __ r __ qp   

  1. q r q r
  2. q r r q
  3. q r q q
  4. r q q r

11. __ n m m n __ m m n n __ m n n m __  

  1. n n m m
  2. n m n m
  3. m n n m
  4. n m m n

12. __ op __ mo __ n __ __ p n m o p __  

  1. m n o m p n
  2. m n p o m n
  3. m p n m o p
  4. m n p m o n

13. a b __ __ b a a __ __ a b __  

  1. b a a b b
  2. a a b a b
  3. a a b a a
  4. a a a a a

14. ab __ aa __ aaa __ a __ ab __ a  

  1. a b b a b
  2. a b a a a
  3. a a b b a
  4. a b b a a

15. a __ bba __ aab __ aa __ abba __   

  1. a a b a a
  2. b a c b a
  3. b b a a a
  4. a a b b a

16. nc __ dcn __ cddc __ n __ ddcnn __ d  

  1. c d n d c
  2. d n n c c
  3. d c n d d
  4. n c c d n

17. a __ ab __ bcbc __ caca __  

  1. c c b a
  2. a c b a
  3. b c c b
  4. b c a b


18. l __ se __ os __ lo __ el __ se  

  1. o l e s o
  2. l o l e s
  3. o e s l s
  4. l o e s o

19. aba __ baca __ ba __ bacaabac __ aca  

  1. c a c b
  2. c c a b
  3. c a b c
  4. a b c c

20. ca __ bd __ ec __ fd __ gef   

  1. b c d e
  2. b d c e
  3. b c e d
  4. d b c e

21. __ in __ __ i __ kw __ nk __ in __  

  1. k w w i n i k
  2. w w n k i n k
  3. w k w n i w k
  4. w k w i n w k

22. QST __ QS __ R Q __ TR __ STR  

  1. S Q T R
  2. R T S Q
  3. T R Q S
  4. T R R Q

23. a __ b __ a __ __ n __ bb __ abbn  

  1. a b n a b b
  2. b n b b a n
  3. b n b b n a
  4. b a b b a n

24. __ a __ aaaba __ __ ba __ ab __  

  1. a b a a a a
  2. a b a a b a
  3. a a b a b a
  4. a b a b a a

25. h __ eg __ fegh __ eghfe __  

  1. g f f h
  2. h h g g
  3. f f g h
  4. f h f g

26. ac __ bd __ ce __ df __ egh  

  1. d f g e
  2. b d c a
  3. d g f e
  4. d e f g

27. XY __ KX __ ZK __ YZK XYZ __ __  

  1. Z Y X K X
  2. Z Y K X Z
  3. Z K X Y K
  4. Z X Y K X

28. a e b d __ f j g i __ k o l n __  

  1. c m h
  2. c h m
  3. c g m
  4. e j l

29. ac __ cab __ baca __ aba __ aca __  

  1. a c b c c
  2. a a c b c
  3. b a b b b
  4. b c b b a

30. ac ___ ga ___ eg ___ ce  

  1. d b a g
  2. e c a g
  3. d e a g
  4. e b d g