series completion verbal reasoning questions

Directions to Solve

In each of the following letter series, some of the letters are missing which are given in that order as one of the alternatives below it. Choose the correct alternative.

1.

_ stt _ tt _ tts _
A.     tsts    B.     ttst
C.     sstt    D.     tsst
Answer & Explanation

Answer: Option D

Explanation:

The series is tst/tst/tst/tst. Thus, the pattern ‘tst’ is repeated.

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2.

gfe _ ig _ eii _ fei _ gf_ ii
A.     eifgi    B.     figie
C.     ifgie    D.     ifige
Answer & Explanation

Answer: Option C

Explanation:

The series is gfeii/gfeii/gfeii/gfeii. Thus, the pattern ‘gfeii’ is repeated.

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3.

_ a _ b _ abaa _ bab _ abb
A.     aaabb    B.     ababb
C.     babab    D.     babba
Answer & Explanation

Answer: Option D

Explanation:

The series is baa/bba/baa/bba/baa/bb. Thus, the pattern baa/bba is repeated.

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4.

abca _ bcaab _ ca _ bbc _ a
A.     ccaa    B.     bbaa
C.     abac    D.     abba
Answer & Explanation

Answer: Option C

Explanation:

The series is abc/aabc/aabbc/aabbcc/a.

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5.

_ tu _ rt _ s _ _ usrtu _
A.     rtusru    B.     rsutrr
C.     rsurtr    D.     rsurts
Answer & Explanation

Answer: Option D

Explanation:

The series rtus/rtus/rtus/rtus. Thus, the pattern ‘rtus’ is repeated.