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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 consists of one advocate, three docotors and one male teacher, the members of the team are :

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

Justification:

The advocates are A, B and R; the doctors are C, D, P, Q and S; male teachers is E. Clearly, E will be selected, E and Q have to be together. C and Q cannot be together. So, C will not be selected. P also cannot be selected because U is not selected. So, two other doctors D and S will be selected. P is not selected, so A will not be selected. D is selected, so B cannot be selected. Thus, the team is D E Q R S.

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