Maths

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Two players each flip a fair coin. The probability that they get the same result can be expressed as ab where a and b are coprime positive integers. What is the value of a+b?

Dont get the a+b :(

  • Maths -

    You must be referring to your earlier post here

    http://www.jiskha.com/display.cgi?id=1365593486

    I had the probabily as 1/4
    comparing this with a/b ----> a=1 and b=4
    then a+b = 1+4 = 5

  • Maths -

    wasnt 5 :(

  • Maths -

    is it 3?

  • Maths -

    yes it is 3

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