SOLUTION: Given the digits 1, 3, 6, 9, find the probability that a four digit number formed by using each of them only once is divisible by 7.
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-> SOLUTION: Given the digits 1, 3, 6, 9, find the probability that a four digit number formed by using each of them only once is divisible by 7.
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Question 984185: Given the digits 1, 3, 6, 9, find the probability that a four digit number formed by using each of them only once is divisible by 7. Answer by macston(5194) (Show Source):
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There are 24 possible four digit numbers using each once, and four are evenly divisible by 7, probability 1 in 6.
