Question
Read the given statements and conclusions carefully.
Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statement: Some SD are TY. All KF are QA. No KF is TY. Conclusions: I. Some SD are QA. II. Some SD are not KF. III. Some TY are QA.Solution
All KF are QA (A) → Some QA are KF (I) + No KF is TY (E) → Some QA are not TY (O). Hence conclusion I does not follow. Some SD are TY (I) + No KF is TY (E) → Conversion → No TY is KF (E) → Some SD are not KF (O). Hence conclusion II follows. Some SD are not KF (O) + All KF are QA (A) → No conclusion. Hence conclusion III does not follow.
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