SOLUTION: Let an integer be chosen at random from the integers 1 to 30 inclusive. Find the probability that the integer chosen is divisible by 4 or is greater than 25 and less than 30.

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Question 1080233: Let an integer be chosen at random from the integers 1 to 30 inclusive. Find the probability that the integer chosen is divisible by 4 or is greater than 25 and less than 30.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Integers in the range divisible by 4:4,8,12,16,20,24,28- 7 of them
Integers in the range greater than 25 and less than 30:26,27,28,29- 4 of them
Integers in both groups: 28 - 1 of them
So,
P=%287%2B4-1%29%2F30=10%2F30=1%2F3