Question
Some towns are centres. Some cities are not districts.
Some towns are not cities. 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
All centres are districts. (A) + All districts are towns. (A) ⇒ All centres are towns. (A) ⇒ Conversion ⇒ Some towns are centres. All districts are towns. (A) + No town is a city. (E) ⇒ No district is a city. (E) ⇒ Conversion ⇒ Some cities are not districts. (O) No town is a city. (E) ⇒ Conversion ⇒ No city is a town. (E) ⇒ Conversion ⇒ Some town are not cities. (O) Hence, option 1 is correct.
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