UPSC Prelims 2010·GS1·polity-and-governance·governance

In a group of five persons A, B, C, D and E, there is a professor, a doctor and lawyer. A and D are unmarried ladies, and do not work. Of the married couple in the Group, E is the husband. B is the brother of A and is neither a doctor nor a lawyer. Who is the professor?

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Last updated 23 May 2026, 3:31 pm IST
  1. ABCorrect
  2. BC
  3. CA
  4. DCannot be determined with the available data

Explanation

The problem can be solved by identifying the roles and relationships of each person. There are five people: A, B, C, D, and E. First, we identify the non-workers. The question states A and D are unmarried ladies who do not work. This leaves B, C, and E to fill the three professional roles: professor, doctor, and lawyer. Second, we identify the married couple. E is the husband. Since A and D are unmarried, E's wife must be B or C. However, B is the brother of A, meaning B is male. Therefore, C must be the wife. The married couple is E and C. Third, we assign the professions. B is neither a doctor nor a lawyer. Since B must have one of the three professions, B must be the professor. This leaves the doctor and lawyer roles to be shared between C and E. Since the question asks specifically for the professor, the answer is B.
polity-and-governance: In a group of five persons A, B, C, D and E, there is a professor, a doctor and lawyer. A and D are unmarried ladies, an
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