Fill the four missing letters (left to right) so that the long series cycles cleanly. Series: L U _ T U P L U B T U _ L U B T _ P _ U B T U P
Verbal Reasoning
Letter and Symbol Series
Difficulty: Easy
Choose an option
-
ABPUL
-
BBUPL
-
CLBPU
-
DPBUL
Answer
Correct Answer: BPUL
Explanation
Introduction / Context:This is a classic long-cycle restoration problem. We suspect a repeating 6-letter block due to the recurring L, U, B, T, U, P fragments.
Given Data / Assumptions:
- Known fragments strongly hint at the block L U B T U P.
- Four letters must be threaded to respect that block end-to-end.
Concept / Approach:Assume the 6-letter cycle L U B T U P and check which fill completes every partial block into that same sequence without contradiction.
Step-by-Step Solution:
1) Insert option a = B P U L.2) Each incomplete chunk then becomes L U B T U P, and the concatenation of chunks remains perfectly periodic.3) Other options force mis-ordered letters inside at least one chunk.Verification / Alternative check:Mark 6-character windows and confirm they all read L U B T U P.
Why Other Options Are Wrong:They create at least one local violation of the L U B T U P order.
Common Pitfalls:Misplacing letters by reading blanks out of sequence.
Final Answer:BPUL