In the given letter series, some of the letters are missing which are given in that order as one of the following alternatives. Choose the correct alternative.
_a_b_abaa_bab_abb
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → babba
In a letter series with gaps, a short block of letters repeats. The series has 17 places; filled with the letters of Option (4), it becomes the block b a a b b a written again and again.
Filling the gaps with b, a, b, b, a gives: baabba / baabba / baabb
The first two parts read b a a b b a, and the last part begins the block once more