Difficulty: Medium
Correct Answer: Z
Explanation:
Introduction / Context:
This problem combines letter position identification and vocabulary. It uses a common reasoning exam format where specific letters from a longer word are selected and then rearranged to form meaningful English words. You must then encode the result using a rule that depends on how many distinct words can be formed.
Given Data / Assumptions:
Base word: PROCRASTINATED.
We select letters from positions 2, 7, 9, 10, and 13 of this word.
If no meaningful word can be formed, the answer is coded as X.
If two or three meaningful words can be formed, the answer is coded as Y.
If more than three meaningful words can be formed, the answer is coded as Z.
We assume standard English vocabulary and that letters can be rearranged to form different words.
Concept / Approach:
The first step is to identify the selected letters precisely. The second step is to list all common English words that can be formed using exactly those letters. Because the letters can be rearranged, we are dealing with anagrams. After counting the distinct meaningful words, we choose the correct code (X, Y, or Z) using the rules stated in the question.
Step-by-Step Solution:
Step 1: Write PROCRASTINATED with positions: P(1), R(2), O(3), C(4), R(5), A(6), S(7), T(8), I(9), N(10), A(11), T(12), E(13), D(14).
Step 2: Extract letters at positions 2, 7, 9, 10, and 13: R, S, I, N, E.
Step 3: Rearrange these letters to see which meaningful English words can be formed. Common words include RISEN, RESIN, RINSE, and REINS. All of these use exactly the letters R, S, I, N, E.
Step 4: We already have at least four meaningful words, which means the count is more than three.
Step 5: According to the given rule, more than three meaningful words correspond to the code Z.
Verification / Alternative check:
We can cross check by making sure each candidate word uses all and only the selected letters. RISEN uses R, I, S, E, N. RESIN uses R, E, S, I, N. RINSE uses R, I, N, S, E. REINS uses R, E, I, N, S. No extra letters are involved and there are no repeated letters beyond the available set. This confirms that there are indeed more than three valid words, so Z is the appropriate code.
Why Other Options Are Wrong:
S: This option does not match any defined rule in the question for encoding the count of words.
Y: Y would be correct only if two or three meaningful words could be formed, but we have more than three.
X: X is used when no meaningful word can be formed, which is clearly not the case here.
Cannot be determined: The count is determinable by careful analysis, so this option is not valid.
Common Pitfalls:
A frequent mistake is to stop after finding only one or two words, for example after RESIN and RINSE, and then incorrectly choose Y. Another pitfall is ignoring less common but still valid words like REINS or RISEN. To avoid such errors, it is important to systematically check permutations or recall common anagram sets from vocabulary practice.
Final Answer:
Since more than three meaningful words can be formed, the correct code is Z.
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