Difficulty: Easy
Correct Answer: REVISION
Explanation:
Introduction / Context:
In this word formation question, the base word is REJUVENATION. You must find out which option word cannot be constructed using its letters. This requires close attention to letter presence and letter counts. Such questions often look simple but can be tricky when letters repeat.
Given Data / Assumptions:
Concept / Approach:
The stepwise method is:
Step-by-Step Solution:
Step 1: Write the letters of REJUVENATION: R, E, J, U, V, E, N, A, T, I, O, N.
Step 2: Count them. We have R = 1, E = 2, J = 1, U = 1, V = 1, N = 2, A = 1, T = 1, I = 1, O = 1.
Step 3: Check JUTE. It needs J, U, T, E. All of these letters appear in the base word with at least one occurrence, so JUTE can be formed.
Step 4: Check NATION. It needs N, A, T, I, O, N. That is N = 2, A = 1, T = 1, I = 1, O = 1. The base word has N = 2 and at least one of each of the others. Thus NATION can be formed.
Step 5: Check NATIVE. It needs N, A, T, I, V, E. The base word has N = 2, A = 1, T = 1, I = 1, V = 1, E = 2, so NATIVE can be formed.
Step 6: Check RAIN. It needs R, A, I, N. The base word contains each of these in at least the required quantity, so RAIN can be formed.
Step 7: Check REVISION. It needs R, E, V, I, S, I, O, N. Here we immediately notice the letter S, which does not appear anywhere in REJUVENATION. Also, REVISION uses I twice, but REJUVENATION has only one I. Therefore, even ignoring the missing S, there is not enough I. This makes REVISION impossible to form from the base word.
Verification / Alternative check:
A quick verification technique is to scan for letters that are absent in the base word. The letter S appears in REVISION but not in REJUVENATION. None of the other options contains such a clearly missing letter. This alone is enough to confirm that REVISION cannot be formed. Checking the repeated I gives a second, independent reason.
Why Other Options Are Wrong:
JUTE uses J, U, T, and E, all present in the base word and within allowed counts.
NATION uses N, A, T, I, and O with repetition of N, all of which are supported by the letter counts in the base word.
NATIVE uses N, A, T, I, V, and E, all available and within limits.
RAIN uses R, A, I, and N, which the base word has in sufficient numbers.
Common Pitfalls:
Students may forget to check for repeated letters or overlook a single missing letter because they are familiar with a word. Another common mistake is to stop checking as soon as the first few letters match. It is safer to verify all letters quickly, especially in longer options like REVISION.
Final Answer:
The word that cannot be formed from REJUVENATION is REVISION.
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