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Probability and divisible by questions help please!!?

A.) Five counterfeit coins are mixed with nine authentic coins. If two coins are drawn at random, what is the probability that one coin is authentic and one is counterfeit?

B.) What is the sum of the integers between 1 and 300 that are divisible by 11, 13 or both?… Continue reading

2 comments - What do you think?  Posted by admin - April 14, 2010 at 10:39 pm

Categories: Trivia   Tags: counterfeit coins, divisible by 33, divisible by 88, divisible questions, integers, probability, probability and divisible questions, two coins, what is divisible by 165

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