Question
Some mats are rollers. No wheel may be belt. Some cars
may not be wheels. 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
Some rollers are wheels (I) + All wheels are mats (A) ⇒ Some rollers are mats (I) ⇒ Conversion ⇒ Some mats are rollers (I). No belt is a rollers (E) + Some rollers are wheels (I) ⇒ Some wheels are not belts (O*) ⇒ [Probable conclusion] ⇒ No wheel may be belt (E). All wheels are mats (A) + All mats are cars (A) ⇒ All wheels are cars (A) ⇒ Conversion ⇒ Some cars are wheels (I) ⇒ [Probable conclusion] ⇒ Some cars may not be wheels (O). Hence, option 3 is correct.
By elimination method - By 1, All + All = +ve. Hence it is eliminated. By 2, some + some = no definite conclusion can be drawn. Hence it is eliminated. By 4, No + All = -ve, Hence it is eliminated. Hence answer is option 3.
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