SOLUTION: A bag contains 5 blue marbles, 4 white marbles and 3 red marbles. If three marbles are randomly selected from the bag,what is the probability that the marbles selected will be the

Algebra.Com
Question 1177654: A bag contains 5 blue marbles, 4 white marbles and 3 red marbles. If three marbles are randomly selected from the bag,what is the probability that the marbles selected will be the same color?
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!

Hi
12 Marbles: 5B 4W 3R
Choose 3:  12C3 all ways this can be done

P(3 are same color) = P(B) + P(W) + P(R) = [5C3 + 4C3 + 3C3]/12C3 = (10+4+1/220 = 15/220 = 3/44 0r .0681

Wish You the Best in your Studies.


RELATED QUESTIONS

One bag contains 3 red marbles & 4 green marbles. Another bag contains 2 green marbles &... (answered by stanbon)
A bag contains 5 red marbles, 6 blue marbles, 9 white marbles and 9 yellow marbles. You... (answered by )
A bag contains 6 red marbles, 4 blue marbles, 7 white marbles and 9 yellow marbles. You... (answered by edjones)
one bag contains 5 red marbles, 4 blue marbles, and 3 yellow marbles, and a second bag... (answered by flame8855)
A bag contains 5 black marbles, 4 red marbles, 6 green marbles, and 5 blue marbles. What... (answered by stanbon)
A bag contains 8 red marbles, 7 blue marbles, 10 white marbles and 9 yellow marbles. You... (answered by ewatrrr)
A bag contains 8 red marbles, 7 blue marbles, 10 white marbles and 9 yellow marbles. You... (answered by ewatrrr)
A bag contains 4 blue marbles and 5 red marbles. If 2 marbles are selected at random... (answered by scott8148)
A bag contains 5 red marbles, 4 blue marbles, and 8 green marbles. Three marbles are... (answered by oscargut)