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Mathematics 7 Online
OpenStudy (anonymous):

A jar contains 26 marbles. It has 10 red, 8 black, and 8 green marbles. Two marbles are drawn; the first is not returned before the second one is drawn. What is the probability that both marbles are green?

OpenStudy (anonymous):

i got 8/13 for my answer

OpenStudy (er.mohd.amir):

now two green drawn is=2C8/2C26

OpenStudy (anonymous):

so was my answer right?

OpenStudy (er.mohd.amir):

8C2/26C2 i write wrong

OpenStudy (anonymous):

?

OpenStudy (er.mohd.amir):

ans=28/325

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