SOLUTION: A drawer contains 50 bolts and 150 nuts. Half of the bolts and half of the nuts are rusted. If one item is chosen at random, what is the probability that it is rusted or a bolt?

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Question 457383: A drawer contains 50 bolts and 150 nuts. Half of the bolts and half of the nuts are rusted. If one item is chosen at random, what is the probability that it is rusted or a bolt?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
100 are rusted of 200
100/200 rusted=1/2=2/4
50/200 bolt=1/4

1/4 says it is bolt
2/4 says it is rusted
1/4+2/4=3/4 =75%
It is rusted or a bolt (or both)