Question

Select the set of letters that, when sequentially placed in the blanks of the given letter series, will complete the letter series

Z _ P _ _ U _ D Z U _ D

1. P D Z P P
2. U P Z D P
3. U D Z U P
4. U D Z P P

Answer 1

Correct Answer - Option 4 : U D Z P P

Filling the blanks with each set of the given letters,

Option1. Z P P D /  Z U P D /  Z U P D →  No pattern or series can be formed. 

Option2. Z U P P / Z U D D / Z U P D → No pattern or series can be formed.

Option3. Z U P D / Z U U D /  Z U P D →  No pattern or series can be formed.

Option4. Z U P D  / Z U P D /  Z U P D → This forms a series with a set pattern. (Repetition of ZUPD)

Hence, only the set (U D Z P P) completes the given letter series.