SOLUTION: A Bag contains 8 red, 10 white, and 4 blue marbles. Find the probability of obtaining a red or blue marble in a single draw. I can't seem to understand it because I'm not used t

Question 379319: A Bag contains 8 red, 10 white, and 4 blue marbles. Find the probability of obtaining a red or blue marble in a single draw.
I can't seem to understand it because I'm not used to picking two different colors. Not sure what to do.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi,

22 Marbles, of which 8 are red, 10 white and 4 blue

P(red 'or' blue in single draw) = 8/22 + 4/22 = 12/22 = 6/11 

RELATED QUESTIONS

A bag contains 4 red, 5 white, and 6 blue marbles. Find the probability of obtaining a... (answered by jorel1380)
a bag contains 4 red, 5 white, and 3 blue marbles. Find the probability of obtaining a... (answered by Fombitz)
A bag contains 3 blue marbles, 4 red marbles, and 3 white marbles. You draw a marble from  (answered by timvanswearingen)
A bag contains 5 green marbles, 4 red marbles, 7 blue marbles, and 9 yellow marbles.... (answered by oscargut)
A marble is drawn at random from a bag containing 6 red marbles, 4 white
marbles, and 5... (answered by stanbon)
A bag contains 4 red marbles, 5 blue marbles and 3 green marbles. Find the probability... (answered by ikleyn)
In a bag of 10 marbles, there are 5 blue marbles, 3 red marbles, and 2 white marbles.... (answered by stanbon)
A bag contains 3 red marbles, 6 blue marbles, and 1 white marble. the marbles are... (answered by Alan3354)
A bag contains five blue marbles, five red marbles, five white marbles, and five black... (answered by ewatrrr)