Question 958165: Fifty balls are numbered 150 and a red dot is painted on those balls that are a multiple of 7. The balls are mixed into a bag and one ball is randomly chosen. What is the probability that the ball is numbered with a multiple of 5 or has a red dot
Answer by Fombitz(32388)   (Show Source):
You can put this solution on YOUR website! Red dot balls : {7,14,21,28,35,42,49} - 7 members
Multiples of 5 balls : {5,10,15,20,25,30,35,40,45,50} - 10 members
Both red dot and multiple of 5 : {35}
So then,
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