Multiple Choice Questions on A card is drawn at random from a pack of 80 cards numbered 1 to 80 The probability of drawing a num........... for CDS Exam Preparation

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Multiple Choice Questions

A card is drawn at random from a pack of 80 cards numbered 1 to 80 The probability of drawing a num...........

Quantitative Aptitude (CDS) Probability
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    .A card is drawn at random from a pack of 80 cards numbered 1 to 80.The probability of drawing a number which is a cube is?

    1/20

    Correct Answer

    1/10

    Incorrect Answer

    3/20

    Incorrect Answer

    1/30

    Incorrect Answer
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    Explanation:

    n(T)=80

     A=cube numbers from 1 to 80

     =1,8,27,64

      n(A)=4

     Therefore required probability=n(A)/n(T)

     =4/80

     =1/20

     

    By: bhavesh kumar singh
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