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: Circle @ Triangle; Rectangle > Circle; Rectangle & Sphere; Sphere # Square Conclusions:
I. Circle ? Square
II. Rectangle + Circle
III. Triangle < Square
IV. Circle ? Sphere

After decoding the codes, we get, Statements: Circle @ Triangle means Only Circle is Triangle Rectangle > Circle means Only a few Rectangle is Circle Rectangle & Sphere means All Rectangle is Sphere Sphere # Square means No Sphere is Square Conclusions: I. Circle ? Square means Some Circle is not Square II. Rectangle + Circle means All Rectangle is Circle is a possibility III. Triangle < Square means Some Triangle is Square IV. Circle ? Sphere means Some Circle is not Sphere All Rectangle is Sphere (A) + No Sphere is Square (E) → No Rectangle is Square (E) → Conversion → No Square is Rectangle (E) + Only a few Rectangle is Circle (I) → Some Circle is not Square (O*).  Hence conclusion I follows. Only a few Rectangle is Circle (I) → Some Rectangle is Circle (I) and Some Rectangle is not Circle (O). Hence conclusion II does not follow. Only Circle is Triangle → All Triangle is Circle and Triangle cannot have positive relation with anyone. Hence conclusion III does not follow. Some Circle is not Sphere: Follows (As, only Circle is Triangle, so some Circle can never be anm other element). Hence conclusion IV follows.