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  • Question
  • In a class, there are 80 students who study both Computer Science and Electronics. While 100 students study Computer Science, 120 students study Electronics. How many of them study Computer Science only?


  • Options
  • A. 100
  • B. 40
  • C. 180
  • D. 20

  • Correct Answer
  • 20 

    Explanation

    According to above given question , we can say that
    There are 100 students in Computer Science which include students of electronics too.
    Numbers of students who study both Computer Science and Electronics = 80
    ? Number of students opting for Computer Science only = 100 ? 80 = 20
    Therefore , 20 students study Computer Science only .


  • Venn Diagrams problems


    Search Results


    • 1. 
      Find out which of the diagrams as given in the alternatives correctly represents the relationship stated in the question. Mountains, Forests, Earth

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    • 2. 
      Which one of the following figures represents the relationship among Tables, Chairs, Furniture?

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    • 3. 
      Which one of the following diagrams best depicts the relationship among Pigeons, Birds and Dogs?

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    • 4. 
      Some of the Cricket players are Tennis players, Some Tennis players are Hockey players, no Cricket player is a Hockey player. Which one of the following diagrams represents the above statements?

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    • 5. 
      If each circle represents a class of objects/ideas, written below then find out the answer figure which illustrates better the relationship among them: Cats, Rats, Animals

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    • 6. 
      Which of the following figures represents the relationship among DOG, CAT and PET?

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    • 7. 
      Which one of the following diagrams best depicts the relationship among Pigeons, Birds and Dogs.

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    • 8. 
      Which one of the following diagrams best depicts the relationship among horses, parrots and birds?

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    • 9. 
      Identify the figure which best represents the relationship among Tables, Chairs and Furniture.

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    • 10. 
      Which one of the following diagrams best depicts the relationship among Tiger, Lions and Animals?

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