Reasoning Ability - MCQ Practice Questions

From 'All doctors are professionals' and 'Some professionals are ethical', we cannot definitively conclude anything about the relationship between doctors and ethical people, as the 'some professionals' may or may not include doctors.

Pattern: (1×2)+1=3, (3×2)+1=7, (7×2)+1=15, (15×2)+1=31, (31×2)+1=63. The next term is 63.

D is between A and E means either A-D-E or E-D-A. B is between E and C means E-B-C. Combining: A-D-E-B-C satisfies both conditions.

ROAR is the sound a LION makes. Similarly, HISS is the sound a SNAKE makes. The relationship is animal to its characteristic sound.

In a 7-person circular arrangement with given constraints: A-C-D arrangement clockwise, E is 3rd right of A (which is 4th left, so 2 positions left of A in a 7-circle). Working through all constraints systematically places G immediately to the left of E.

If X is father of Y, and Y is brother of Z, then Z must be a child of X. Since Y is Z's brother, Z shares the same parents as Y. Therefore, X is the father of Z.