A box contains 11 large marbles and 13 small marbles Each ma
A box contains 11 large marbles and 13 small marbles. Each marble is either green or white. 4 of the large marbles are green, and 6 of the small marbles are white. If a marble is randomly selected from the box, what is the probability that it is large or white?
A box contains 11 large marbles and 13 small marbles. Each marble is either green or white. 4 of the large marbles are green, and 6 of the small marbles are white. If a marble is randomly selected from the box, what is the probability that it is large or white?
Solution
There are 11+13 = 24 marbles.
There are 11 large.
6 small marbles are white.
Thus, there are 11+6 = 17 large or white marbles.
Hence,
P(large or white) = 17/24 or 0.708333333 [ANSWER]
