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Math Help - Simple probability question

  1. #1
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    Simple probability question

    there are one hundred identical cards in numbered from 1 to 100. the cards are mixed and placed in a bag. one card is drawn out and it's number is noted. what is the probability that the number will be
    a) a multiple of both 3 and 5
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  2. #2
    MHF Contributor matheagle's Avatar
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    Quote Originally Posted by Rose Wanjohi View Post
    there are one hundred identical cards in numbered from 1 to 100. the cards are mixed and placed in a bag. one card is drawn out and it's number is noted. what is the probability that the number will be
    a) a multiple of both 3 and 5

    you just have to count all of those numbers between 1 and 100 that are multiples of 3 and 5, which are 15, 30, 45, 60, 75, 90 and divide that by 100. Am I missing any?
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