General Studies · Syllogism

Three statements are given followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements. Statements: All valleys are mountains. Some mountains are hills. Some hills are plateaus. Conclusions: I. Some plateaus are mountains. II. Some valleys are plateaus. III. Some mountains are valleys.