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Railways PYQCBT 1 2016

RRB NTPC · Question 30

Read the passage given below and answer the questions that follow. In a club of 30 people, all of them belong to at least one group- chess, Drama and Art. 6 people belong only to the Art group. 5 People belong to all the three groups. 2 people have joined the Chess and the Art group but not the Drama group 15 people belong to the Art group. 2 people have joined only the Chess group. 3 people have joined only the Drama group. How many people have belong to the Chess group? A. 21 B. 13 C. 19 D. 20

  1. D

  2. A

  3. C

  4. B

Show answer & explanation

Answer: (C) C

Explanation

Art = 15, so Drama and Art only = 15 − 6 − 5 − 2 = 2. Total 30 = 2 + 3 + 6 + 2 + 2 + 5 + (Chess and Drama only), giving 10 for Chess and Drama only. Chess = 2 + 2 + 5 + 10 = 19.