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 WA are CV. All VB are QA. No VB is CV. Conclusions: I. Some WA are QA. II. Some WA are not VB. III. Some CV are QA.Solution
All VB are QA (A) β Some QA are VB (I) + No VB is CV (E) β Some QA are not CV (O). Hence conclusion I does not follow. Some WA are CV (I) + No VB is CV (E) β Conversion β No CV is VB (E) β Some WA are not VB (O). Hence conclusion II follows. Some WA are not VB (O) + All VB are QA (A) β No conclusion. Hence conclusion III does not follow.
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