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OpenStudy (anonymous):
cards are numbered 1-25.two cards are drawn one after the other.find the probablity that the number on one card is a multiple of 7 and on the other it is a multiple of 11.
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OpenStudy (kc_kennylau):
These questions may lead you to the answer? (a) How many cards are there? (b) How many numbers in 1-25 are divisible by 7? (c) How many numbers in 1-25 are divisible by 11? (d) What is the probability that you draw a card with a number that is divisible by 7? (e) What is the probability that you draw a card with a number that is divisible by 11? (f) What is the probability that you draw a card with a number that is divisible by 7 or 11?
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