Multiple Choice Questions on 4 Coins whose faces are marked 1 2 are thrown What is the probability of obtaining a total of 8 ........ for CDS Exam Preparation

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Multiple Choice Questions

4 Coins whose faces are marked 1 2 are thrown What is the probability of obtaining a total of 8 ........

Quantitative Aptitude (CDS) Probability
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    4 Coins whose faces are marked 1,2 are thrown. What is the probability of obtaining a total of 8?

    5/16

    Incorrect Answer

    1/2

    Incorrect Answer

    3/16

    Incorrect Answer

    1/16

    Correct Answer
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    Explanation:

    Let A be the event of total of 8, then 

     A={(2,2,2,2)}

     n(A)=1                           

    Sample space contain total possibility=2^4

     =16

     Hence n(T)=16

      So P (A)=n(A)/n(T)

     =1/16

     

    By: bhavesh kumar singh
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