Question
No square may be a triangle. All quadrilaterals may be
squares. Some rectangles are quadrilaterals. In the given question, a set of conclusions is given. There are five options comprising of three or more statements. You need to choose the option that contains the set of statements from which the given conclusions logically follow.Solution
No triangle is a rectangle. (E) + Some rectangles are squares. (I) ⇒ Some squares are not triangles (O*) ⇒ [Probable conclusion] ⇒ No square may be triangle (E) All squares are quadrilaterals. (A) ⇒ Conversion ⇒ Some quadrilaterals are squares (I) ⇒ [Probable conclusion] ⇒ All quadrilaterals may be squares. (A) Some rectangles are squares. (I) + All squares are quadrilaterals. (A) ⇒ Some rectangles are quadrilaterals. (I). Hence, option 4 is correct.
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