UPSC CSE Prelims 2016

There are five persons in a group — P, Q, R, S and T. The group has one doctor, one lawyer and one artist. P and S are unmarried students. T is a man married to one of the group members. Q is the brother of P and is neither doctor nor artist. R is not doctor.

Who is the spouse of R?

EXPLANATION

Correct Option (2)

: T

Based on the given information, the following deductions can be made:

P and S are unmarried students. This indicates they are not involved in the specified professions (doctor, lawyer, artist) and are not married within the group.
Q is the brother of P and is neither a doctor nor an artist. Given that there are only three professions (doctor, lawyer, artist), Q must be the lawyer. Q is male.
R is not a doctor. Since Q is the lawyer, R must be the artist.
T is a man married to one of the group members. As P and S are unmarried, and Q is male, T cannot be married to P, S, or Q. Therefore, T must be married to R. Consequently, T holds the remaining profession, which is doctor. T is male.

Thus, R's spouse is T.

Incorrect Options:

P and S are explicitly stated as unmarried students. Therefore, they cannot be the spouse of R.
Q is identified as the lawyer and is male (brother of P). Since T is a man married to one of the group members and is determined to be R's spouse, Q cannot be R's spouse.