ba _ b _ aab _ a _ b

Correct Answer: acbcb

Explanation:

The given series is in the below pattern , we can see that
cabbac / cabbac / cabbac.
Hence , required answer will be acbcb .

Correct Answer: ababab

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.

Correct Answer: abdca

Explanation:

The given series is in the below pattern , we can see that
The series formed is:
a a b a b c a b c d d c b a c b a b a a in which the letters equi?distant from the beginning and end are the same.
Hence , required answer will be abdca .

Correct Answer: cbbaa

Explanation:

From above given series , we can see that
The sequence order of above series is given as-
adbcacbdabcddcbadbcacbda
Hence , required answer will be cbbaa .

Correct Answer: 24.75

Explanation:

As per the details in the question the series is in the form of
First series :-
First term = 5
Second term = First term × 1 + 0.25 × 1
? Second term = 5 × 1 + 0.25 × 1 = 5.25
Third term = Second term × 2 + 0.25 × 4
? Third term = 5.25 × 2 + 0.25 × 4 = 11.5
similarly , we can find the all others terms .
Second series :-
First term = 3
Second term = First term × 1 + 0.25 × 1
? Second term = 3 × 1 + 0.25 × 1 = 3.25
Third term = Second term × 2 + 0.25 × 4 = 7.5
? Third term = 3.25 × 2 + 0.25 × 4 = 7.5
Fourth term = Third term × 3 + 0.25 × 9
? Fourth term = 7.5 × 3 + 0.25 × 9 = 24.75
So 24.75 should come in place of (c).

Correct Answer: abac

Explanation:

The given series is in the below pattern , we can see that
The series is abc / aabc / aabbc / aabbcc / a.
Hence , required answer will be abac .

Correct Answer: bdac

Explanation:

The sequence order of above series is given as-
a a b b c c d d/ a a a b b b c c c d d d
Hence , required answer will be bdac .

Correct Answer: abba

Explanation:

The sequence order of above series is given as-
baab / baab / baab
Hence , required answer will be abba .

Correct Answer: bbaa

Explanation:

From above given series ,
Firstly , we make the pairs of four letters in given series . Now putting the values of options one by one a specific order in blank position .
a a b b/ b b a a/ a a b b / b b a a.
Hence , required answer will be bbaa and the correct option is A .

Correct Answer: acbcb

Explanation:

The given series is in the below pattern , we can see that
cabbac / cabbac / cabbac.
Hence , required answer will be acbcb .