1. Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
m _ nm _ n _ an _ a _ ma _
a) aamnan
b) ammanm
c) aammnn
d) amammn
Explanation: The series is man/man/man/man/man. Thus, the pattern 'man' is repeated.
2. Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
_bcc _ ac _ aabb _ ab _ cc
a) aabca
b) abaca
c) bacab
d) bcaca
Explanation: The series is bbccaa/ccaabb/aabbcc. Thus, the letter pairs move in a cyclic order..
3.Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
_ op _ mo _ n _ _ pnmop _.
a) mnpmon
b) mpnmop
c) mnompn
d) mnpomn
Explanation: The series is mopn/mopn/mopn/mopn. Thus, the pattern 'mopn' is repeated.
4. Choose the correct order of the given alternative : _ _ aba _ _ ba _ ab
a) abbba
b) abbab
c) baabb
d) bbaba
Explanation: The series is ab/ab/ab/ab/ab/ab. Thus the pattern 'ab' is repeated..
5. Choose the correct order of the given alternative : ab _ _ baa _ _ ab _
a) aaaaa
b) aabaa
c) aabab
d) baabb
Explanation: The series is aba/aba/aba/aba. Thus, the pattern 'aba' is repeated.
6. Choose the correct order of the given alternative : _ acca _ ccca _ acccc _ aaa
a) acca
b) caaa
c) ccaa
d) caac
Explanation: The series is ca/ccaa/cccaaa/ccccaaaa..
7. Choose the correct order of the given alternative : a _ cacbc _ baca _ _ b
a) baba
b) babc
c) abac
d) cacb
Explanation: The series is abcac/bcaba/cabcb. Thus, the series consists of three sequences. The first three letters of each sequence are in a cyclic order and the last two letters of each sequence are the same as the first and third letters of the sequence.
8. Choose the correct order of the given alternative : aab _ ab _ cabcca _ bcab _ c
a) bbbc
b) bbab
c) cabc
d) cbab
Explanation:The series is aa/bcab/bcab/ccaa/bcab/bc. Thus, the pattern 'ccaa' followed by 'bcab' repeated twice, makes up the series..
9. Choose the correct order of the given alternative : a _ ca _ bc _ bcc _ bca
a) bbaa
b) bbab
c) aabb
d) baba
Explanation: The series is abcab/bcabc/cabca.
10. Choose the correct order of the given alternative : c _ ac _ aa _ aa _ bc _ bcc
a) cabba
b) ccbbb
c) bbbbb
d) cbacb
Explanation: The series is ccacc/aabaa/bbcbb/cc.
11. Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
aab _ aa _ bbb _ aaa _ bbba
a) abba
b) baab
c) aaab
d) abab
Explanation: The series is,
aabb / aaabbb / aaaabbbb / a.
Thus letters are repeated twice, then thrice then four times and so on.
12. _ bcc _ ac _ aabb _ ab _ cc.
a) aabca
b) abaca
c) bacab
d) bacaa
Explanation: The series is,
bbccaa / ccaabb / aabbcc.
The pairs of the letters are moving in cyclic order.
13. b _ ccacca _ ba _ bbc _ bc _ a.
a) baabc
b) abaaa
c) acbca
d) bacab
Explanation: The series is,
bbcca / ccaab / aabbc / bbcca.
14.Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
_ stt _ tt _ tts _
a) tsts
b) ttst
c) sstt
d) tsst
Explanation: The series is tst/tst/tst/tst. Thus, the pattern 'tst' is repeated.
15. Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
gfe _ ig _ eii _ fei _ gf_ ii
a) eifgi
b) figie
c) ifgie
d) ifige
Explanation: The series is gfeii/gfeii/gfeii/gfeii. Thus, the pattern 'gfeii' is repeated.
16. Choose the correct order of the given alternative : _ stt _ tt _ tts _
a) tsts
b) ttst
c) sstt
d) tsst
Explanation: The series is tst/tst/tst/tst. Thus, the pattern 'tst' is repeated.
17. Choose the correct order of the given alternative : _ nmmn _ mmnn _ mnnm _
a) nmmn
b) mnnm
c) nnmm
d) nmnm
Explanation: The series is nnmm/nnmm/nnmm/nnmm. Thus, the pattern 'nnmm' is repeated.
18. Choose the correct order of the given alternative : a _ bd _ da _ dbc _ b _ dc
a) aabbc
b) bbcca
c) caabb
d) ccbaa
Explanation: The series is acbd/cdab/dbca/badc. Clearly, each group consists of letters of the previous group in the order - second, forth, fifth, third..
19. Choose the correct order of the given alternative : a _ bc _ a _ bcda _ ccd _ bcd _
a) abddbd
b) acbdbb
c) adbbad
d) adbcad
Explanation: The series is aabcd/abbcd/abccd/abcdd.
20. Choose the correct order of the given alternative : a _ bb _ baa _ bbb _ aa _
a) aabba
b) bbaab
c) abaaa
d) baabb
Explanation: The series is aabbbb/aaabbb/aaaa. At each step, the number of a's increases by one; while the number of b's decreases by one.
21. Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
_ a _ b _ abaa _ bab _ abb
a) aaabb
b) ababb
c) babab
d) babba
Explanation: The series is baa/bba/baa/bba/baa/bb. Thus, the pattern baa/bba is repeated.
22. Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
abca _ bcaab _ ca _ bbc _ a
a) ccaa
b) bbaa
c) abac
d) abba
Explanation: The series is abc/aabc/aabbc/aabbcc/a.
23. Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
_ tu _ rt _ s _ _ usrtu _
a) rtusru
b) rsutrr
c) rsurtr
d) rsurts
Explanation: The series rtus/rtus/rtus/rtus. Thus, the pattern 'rtus' is repeated.
24. Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
_ _aba _ _ ba _ ab
a) abbba
b) abbab
c) baabb
d) bbaba
Explanation: The series is ab/ab/ab/ab/ab/ab. Thus, the pattern 'ab' is repeated.
25. Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
c _ bbb _ _ abbbb _ abbb _
a) aabcb
b) abccb
c) abacb
d) baebb
Explanation: The series is cabbbb/cabbbb/cabbbb. Thus, the pattern 'cabbbb' is repeated.
26. Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
a_bbc_aab_cca_bbcc
a) bacb
b) acba
c) caba
d) abba
Explanation: The pattern is,
aabbccaabbccaabbcc.
The pattern aabbcc is repeated.
27.Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
_ bc _ ca _ aba _ c _ ca
a) abcbb
b) bbbcc
c) baaba
d) abbcc
Explanation: The series is,
abc b ca c aba b c b ca.
The letters are changing their place in a cycling order.
28.Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
_ ab _ b _ aba _ _ abab.
a) abbaa
b) bbaab
c) abaab
d) aaaba
Explanation: aabab / aabab / aabab.
The pattern is repeated aabab.
29.Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
bca _ b _ aabc _ a _ caa
a) acab
b) bcbb
c) cbab
d) ccab
Explanation: The series is,
bcaa / bcaa / bcaa / bcaa.
bcaa pattern is reapeated.
30. Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
b _ac _ cc _ cb _ ab _ ac
a) cbaba
b) bbaac
c) abbbc
d) aabba
Explanation:The series is,
baac / accb / cbba / baac
31. Choose the correct order of the given alternative : ab _ bbc _ c _ ab _ ab _ b
a) ccaac
b) cbabc
c) cacac
d) bccab
Explanation: The series is abc/b/bca/c/cab/a/abc/b.
32. Choose the correct order of the given alternative : m n o n o p q o p q r s _ _ _ _ _
a) mnopq
b) oqrst
c) pqrst
d) qrstu
Explanation: The series is mno/nopq/opqrs/pqrst.
33. Choose the correct order of the given alternative : _ bca _ cca _ ca _ b _ c
a) aaaaa
b) bbbab
c) aabaa
d) bbabb
Explanation: The series is bbca/bcca/bcaa/bbc.
34. Choose the correct order of the given alternative : ccbab _ caa _ bccc _ a _
a) babb
b) bbba
c) baab
d) babc
Explanation: The series is ccba/bbca/aabc/ccba/b.
35. Choose the correct order of the given alternative : b _ b _ bb _ _ bbb _ bb _ b
a) bbbbba
b) bbaaab
c) ababab
d) aabaab
Explanation: The series is babb/bbab/bbba/bbbb.. Thus, in each sequence, 'a' moves one step forward and 'b' takes its place and finally in the fourth sequence, it is eliminated.
36. Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
ba _ cb _ b _ bab _
a) acbb
b) bacc
c) bcaa
d) cabb
Explanation: The series is babc/babc/babc. Thus, the pattern 'babc' is repeated.
37. Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
_ bc _ ca _ aba _ c _ ca
a) abcbb
b) bbbec
c) bacba
d) abbec
Explanation: The series is abc/bca/cab/abc/bca, Thus, the letters change places in a cyclic order.
38. Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
ab _ _ baa _ _ ab
a) aaaaa
b) aabaa
c) aabab
d) baabb
Explanation: The series is aba/aba/aba/aba. Thus, the pattern 'aba' is repeated.
39. Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
ab _ aa _ bbb _ aaa _ bbba
a) abba
b) baab
c) aaab
d) abab
Explanation:The series is abb/aaabbb/aaaabbbb/a. Thus the letters are repeated twice, then thrice, then four times and so on.
40. Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?
_ nmmn _ mmnn _ mnnm _
a) nmmn
b) mnnm
c) nnmm
d) nmnm
Explanation: The series is nnmm/nnmm/nnmm/nnmm. Thus, the pattern 'nnmm' is repeated.
41. Choose the correct order of the given alternative : _ bcdbc _ dcabd _ bcdbc _ dc _ bd
a) aaaaa
b) ccccc
c) bbbbb
d) ddddd
Explanation: The series is abcd/bcad/cabd/abcd/bcad/cabd. Clearly, each group consists of letters of the previous group in the order - second, third, first and fourth.
42. Choose the correct order of the given alternative : a _ bccb _ ca _ cca _ baab _ c
a) ababc
b) abcaa
c) accab
d) bacaa
Explanation: The series is aabcc/bbcaa/ccabb/aabcc. Thus, the letters move in a cyclic order and in each group, the middle letter occurs only once.
43. Choose the correct order of the given alternative : _ aaba _ bba _ bba _ abaa _ b
a) aabab
b) ababa
c) baaba
d) bbaba
Explanation: The series is aaab/aabb/abbb/aaab/aabb.
44. Choose the correct order of the given alternative : a _ abbb _ ccccd _ ddccc _ bb _ ba
a) abcda
b) abdbc
c) abdeb
d) abcad
Explanation: The series is aaa/bbbb/cccc/dddd/cccc/bbbb/a.
45. Choose the correct order of the given alternative : ab _ bcbca _ _ c _ bab
a) acbc
b) baaa
c) abcc
d) ccaa
Explanation: The series is abcbc/bcaca/cabab, Thus, the series consists of three sequences. The first sequence begins with a, the second with b, and the third with c. Each sequence consists of a letter followed by the pair of other two letters repeated twice..
46. Choose the correct order of the given alternative : abc _ d _ bc _ d _ b _ cda
a) bacde
b) cdabe
c) dacab
d) decdb
Explanation: The series is abcdd/abccd/abbcd/a.
47. Choose the correct order of the given alternative : a _ c _ abb _ a _ bc _ bc _ ab
a) cbcaaa
b) bcccab
c) bccaac
d) acbabc
Explanation: The series is abccab/bcaabc/abccab.
Thus, the pattern 'abccab/bcaabc' is repeated.
48. Choose the correct order of the given alternative : a _ bc _ c _ abb _ bca _
a) cccbc
b) cbbac
c) accba
d) abbba
Explanation:The series is aabcc/ccabb/bbcaa.
49. Choose the correct order of the given alternative : aa _ aaa _ aaaa _ aaaa_ b
a) baaa
b) bbaa
c) bbbb
d) bbba
Explanation: The series is aab/aaab/aaaab/aaaaab.
Thus, the number of a's increasing by one in the successive sequence,
50. Choose the correct order of the given alternative : XWC _ TS20 _ P12 _ L15K _ P _ GS7
a) 17, F, I, S, T
b) 19, E, L, R, H
c) 21, G, L, N, F
d) 23, H, K, O, H
Explanation: From the alternatives, it is clear that the series can be divided in to 5 groups of four terms each - each group comprising of three letters and a number.
XWC _ /TS20 _/P12 _ L/15K _ P/_ GS7
Observing the above series, we find that each group consists of two consecutive letters and the number represents the position of one of these letters in the English alphabet.
So, 1 st missing term must be the number corresponding to W or X i.e., 23 or 24.