Question
Statements: No slim is weak All weak is
lean Some lean is fat Mostly lean is big Conclusions: I. No big is slim II. Some weak is fat III. Some big which is lean is also weak is a possibility In the question, assuming the given statements to be true, find out which of the following conclusion(s) among the given four conclusions is/are definitely true and then give your answer accordingly.Solution
No slim is weak (E) + All weak is lean (A) → Some lean is not slim (O). Mostly lean is big (I) + Some lean is not slim (O) → No conclusion. Hence conclusion I does not follow. All weak is lean (A) + Some lean is fat (I) → No conclusion. Hence conclusion II does not follow. All weak is lean (A) + Mostly lean is big (I) → Probable conclusion → Some big may be weak (I). Hence conclusion III follows.
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