VENN DIAGRAM (General Mental Ability) UPSC EPFO

Total Questions: 30

1. In the given diagram, circle P represents teachers who can teach Physics, circle Q represents teachers who can teach Chemistry and circle R represents those who can teach Mathematics. Among these, which represents teachers who can teach Physics and Mathematics but not Chemistry, is

Correct Answer: (b) u
Solution:It is the common area between P and R but not including Q, i.e., u.

2. Which one of the following Venn diagrams correctly illustrates the relationship among the classes: Carrot, Food, Vegetable?

Correct Answer: (a)
Solution:Both carrot and vegetable come under the food category, while carrot comes under vegetable category.

3. In the given figure, the triangle represents girls, the square represents sports persons and the circle represents coaches. The portion in the figure which represents girls who are sports persons but not coaches is the one labelled, as

Correct Answer: (b) B
Solution:It is the common area between the triangle and the square, but excluding the circle, i.e., B.

4. In a dinner party both fish and meat were served. Some took only fish and some only meat. There were some vegetarians who did not accept either. The rest accepted both fish and meat Which one of the following logic diagrams correctly reflects the above situation?

Correct Answer: (a)
Solution:

5. Most guitarists are beared males. If A represents all males, B represents beared males and C represents all male guitarists, then the correct diagram for their relations (shaded portion) is

Correct Answer: (a)
Solution:

As all species comes under the male category, so B and C comes under A. Some guitarists are beared, so B and C have some common elements between them.

6. In the below figure, circle P represents hardworking people, circle Q represents intelligent people, circle R represents truthful people, and circle S represents honest people. Which region represents the people who are intelligent, honest and truthful but not hardworking?

Correct Answer: (a) 6
Solution:The region (6) represents, the people who are intelligent, honest, truthful but not hardworking.

7. Which of the following diagrams indicates the best relationship between Page, Chapter and Book ?

Correct Answer: (d)
Solution:(d)

8. Which of the following diagrams best indicates the relationship between Teacher, Writer and Musician ?

Correct Answer: (b)
Solution:(b)

9. In the following diagram, Square represents Doctors, Circle represents Players and Rectangle represents Artists. Which number represents Doors, Circle represents Players and Rectangle represents Artists. Which number represents those Doctors who are players as well as Artists ?

Correct Answer: (a) 7
Solution:(a)

10. In the diagram given below which letter (s) represents the students who play Polo, as well as Badminton and Tennis.

Correct Answer: (c) D
Solution:(c)