Answers

2016-02-20T12:52:23+05:30
First of all add all the marbles then u get
blue colour = 10
green colour = 12
black colour = 17 
add all the above for getting total no. of marbles
10+12+17 =39
so total number of marbles is 39
P(E) = possible outcome / total outcome
so according to this
1) blue marbles, 10/39
2)green marble,12/39
3)black marble,17/39
0
2016-02-20T12:59:00+05:30
First of all add all the marbles then u get
blue colour = 10
green colour = 12
black colour = 17 
add all the above for getting total no. of marbles
10+12+17 =39
so total number of marbles is 39
P(E) = possible outcome / total outcome
so according to this
1) blue marbles, 10/39
2)green marble,12/39
3)black marble,17/39
0
why u coping my answer
r u crazy to cpy others answer.....?
plzzz try it to your own answer.........
and dont cpy my answers.........