Maths

if a number is chosen at random from the integer 5-25 inclusive find the probability that the number is a multiple of 5 or 3

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asked by Pat
  1. there are 21 numbers available.
    Multiples of 3 or 5: 5,6,9,10,12,15,18,20,21,24,25 -- 11 in all
    so, the probability is 11/21

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    posted by oobleck

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