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Math Help - Probability that a randomly chosen two digit positive integer is divisible by 3 or 5.

  1. #1
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    Probability that a randomly chosen two digit positive integer is divisible by 3 or 5.

    What is the probability that a randomly chosen two digit positive integer is divisible by 3 or 5.
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  2. #2
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    Can you answer these questions:

    1) How many two digit positive integers are divisible by 3 or 5?
    Say the answer is A.

    2) How many two digit positive integers are there?
    Say the answer is B.

    Then the probability is \frac{A}{B}.
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  3. #3
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    Quote Originally Posted by Isomorphism View Post
    Can you answer these questions:

    1) How many two digit positive integers are divisible by 3 or 5?
    Say the answer is A.

    2) How many two digit positive integers are there?
    Say the answer is B.

    Then the probability is \frac{A}{B}.
    Thanks for that
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