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Mathematics 8 Online
OpenStudy (anonymous):

Cards with the numbers 1 through 40 are placed in a box and thoroughly shuffled. What is the probability of randomly selecting a card with a number less than 10 or a multiple of 15?

OpenStudy (anonymous):

probability of selecting a number <10 is 9/40 multiples of 15 is 2/40 add 9/40+2/40 11/40

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