What is the probability that a positive integer selected at random from the set of positive integers not exceeding 100 is divisible by either 2 or 5?
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Correct answer: B. 3/5
Explanation
Divisible by 2: 50, by 5: 20, by 10: 10. 50 + 20 − 10 = 60, so P = 60/100 = 3/5.More Discrete Structures and Optimization questions
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