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Mathematical Aptitude MCQ - Venn Diagram

11 Which of the following diagrams indicate the best relation between a teacher, writer and an artist?

A teacher can be an author; an author can be an artist, and so on. Some person can be a teacher, an author as well as an artist.

12 Which of the following diagrams indicate the best relation between travellers, train and taxi?

A traveller can travel by both taxi and train.

13 Which of the following diagrams indicate the best relation between teacher, parents and guardians?

Same explanation as in 11.

14 Which of the following diagrams indicate the best relation between professors, doctors and men?

Same explanation as in 11.

15 Which of the following diagrams indicate the best relation between mercury, zinc and metal?

Mercury is also a metal, although it exists in liquid state.

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Question:

Out of 40 students, 14 are taking English composition and 29 are taking Chemistry. If 5 students are in both classes, then how many students are in neither…

A. 2
B. 3
C. 4
D. 5

Correct answer: A

Explanation:

Alternatively: Students taking either English composition or Chemistry = 14 + 29 – 5 = 38 Hence, students not taking any class = 40 − 38 = 2

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