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 :(

4 answers

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

wasnt 5 :(

is it 3?

yes it is 3