SOLUTION: a box contains 7 large red marbles 5 large yellow marbles 3 small red marbles and 5 small yellow marbles. if a marble is drawn at random what is the probability that is yellow, giv

Algebra ->  Permutations -> SOLUTION: a box contains 7 large red marbles 5 large yellow marbles 3 small red marbles and 5 small yellow marbles. if a marble is drawn at random what is the probability that is yellow, giv      Log On


   

Question 280037: a box contains 7 large red marbles 5 large yellow marbles 3 small red marbles and 5 small yellow marbles. if a marble is drawn at random what is the probability that is yellow, given that it is one of the large marbles
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
7+5+3+5=20 total marbles.
5/20=1/4=.25 or 25% chance of selecting a large yellow marble.