posted by Sabrina .
A gumball machine is filled randomly with gumballs:red,green,purple,white,pink and yellow. The company claims the following percentages of each can be found in an unopened carton.30%red,20%green,20%purple ,20% white,5%pink and 5%yellow. What is the probability that the first gumball to come out of the machine is either red or white.(Give answer as a percentage).
Half the gumballs in the machine are either red or white, so 50%