Difficulty: Easy
Correct Answer: Ram did not bought Car so he must have bought Flat.
Explanation:
Introduction / Context:
In many test items, “either … or …” is taken as an exclusive-or (XOR): exactly one of the two alternatives holds, not both. We are told: “Ram will either buy a car or a flat.” We must find which conclusion necessarily follows.
Given Data / Assumptions:
Concept / Approach:
Under XOR, the two statements are mutually exclusive and collectively exhaustive. Therefore, if we learn one is false, the other must be true. Conversely, if we learn one is true, we may conclude the other is false. The only option that gives a must-follow conclusion independent of which item he actually chose is the conditional negation version.
Step-by-Step Solution:
Verification / Alternative check:
Truth cases: (C, not F) or (not C, F). In the second case, not C implies F immediately; in the first, the statement’s antecedent is false, so no contradiction arises.
Why Other Options Are Wrong:
Common Pitfalls:
Confusing inclusive-or with exclusive-or. Standard test convention favors exclusive unless context suggests otherwise.
Final Answer:
Ram did not bought Car so he must have bought Flat.
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