In the questions given below, there are four statements followed by four conclusions I, II, III and
IV. You have to take the four given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts. If 'L & M' means 'All L is M', 'L @ M' means 'Only L is M', 'L # M' means 'No L is M', 'L > M' means 'Only a few L is M'. 'L < M' means 'Some L is M'. 'L ? M' means 'Some L is not M'. 'L + M' means 'All L is M is a possibility'. Statements: Platinum < Gold; Gold > Scale; Scale & Diamond ; Scale ? Copper Conclusions:
I. Diamond < Gold
II. Copper + Diamond
III. Platinum ? Scale
IV. Copper # Diamond

After decoding the codes, we get, Statements: Platinum < Gold means Some Platinum is Gold Gold > Scale means Only a few Gold is Scale Scale & Diamond means All Scale is Diamond Scale ? Copper means Some Scale is not Copper Conclusions: I. Diamond < Gold means Some Diamond is Gold II. Copper + Diamond means All Copper is Diamond is a possibility III. Platinum ? Scale means Some Platinum is not Scale IV. Copper # Diamond means No Copper is Diamond Only a few Gold is Scale (I) + All Scale is Diamond (A) → Some Gold is Diamond (I) → Conversion → Some Diamond is Gold (I).  Hence conclusion I follows. All Scale is Diamond (A) → Conversion → Some Diamond is Scale (I) + Some Scale is not Copper (O) → Probable conclusion → All Copper mam be Diamond (A). Hence conclusion II follows but conclusion IV does not follow. Some Platinum is Gold (I) + Only a few Gold is Scale (I) → No conclusion. Hence conclusion III does not follow.