In such type of questions, a few essential criteria for selection of a group of items are given. The candidate has to keep these conditions in mind and make the required selection as per the directions given in each question.

There are five men A, B, C, D and E and six women P, Q, R, S, T and U, A, B and R advocates;
C, D, P, Q and S are doctors and the rest are teachers. Some terms are to be selected from amongst these eleven persons subject to the following condition :
A, P and U have to be together.
B cannot go with D or R.
E and Q have to be together.
C and T have to be together.
D and P cannot go together.
C cannot go with Q.

If the term is to consist of two male advocates, two lady doctors and one teachers, the members of the team are :

A. A B P Q U
B. A B P U S
C. A P R S U
D. B E Q R S
Answer: B . A B P U S


The male advocates are A and B, lady doctors are P, Q and S; teachers are E, T and U.
Now, A and B will be selected.
A, P and U have to be together.
Now, we have to select one lady doctor more. It can be Q or S. But Q and E have to be together. Since  E is not selected, so S will be selected.
Thus, the term is A B P U S.