Logical deduction — apples, lemons, and oranges counts in a basket Statements: • The basket contains more apples than lemons. • There are more lemons than oranges. Question: If the first two statements are true, is the statement “The basket contains more apples than oranges” true, false, or uncertain?
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Atrue
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Bfalse
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Cuncertain
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Dboth true and false
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Enone of these
Answer
Correct Answer: true
Explanation
Introduction / Context:This is a classic transitivity problem in inequality reasoning. When comparing quantities of three categories, we can sometimes chain the comparisons to reach a necessary conclusion about two of them. The challenge is to recognize that “more than” is a transitive relation for strict comparisons.
Given Data / Assumptions:
- Let A = number of apples, L = number of lemons, O = number of oranges.
- Premise 1: A > L.
- Premise 2: L > O.
- All counts are whole numbers (nonnegative integers).
Concept / Approach:For strict inequalities on real numbers (and therefore on nonnegative integers), transitivity holds: if x > y and y > z, then x > z. We simply apply this chain to A, L, and O to determine A vs. O. No additional assumptions are required.
Step-by-Step Solution:
Start with A > L (more apples than lemons).Combine with L > O (more lemons than oranges).By transitivity of “>”, conclude A > O (more apples than oranges).Therefore, the third statement is necessarily true if the first two are true.Verification / Alternative check:Pick sample numbers consistent with the premises: let A = 10, L = 7, O = 3. Both premises hold, and indeed 10 > 3, confirming the derived statement. Any valid triple that satisfies A > L and L > O will automatically satisfy A > O.
Why Other Options Are Wrong:
- false: contradicts the guaranteed inequality chain.
- uncertain: would apply only if the relation were not transitive or if non-strict comparisons were involved; neither is the case here.
- both true and false / none of these: distractors that ignore the strict transitivity.
Common Pitfalls:Confusing strict “more than” with “at least as many as”, which is non-strict and can break simple transitivity patterns in edge cases. Here, “more than” is strict, so the chain is safe.
Final Answer:true