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Asked by Anonymous

A number of 4 different digits is formed by using 1, 2, 3, 4, 5, 6, 7. Find
the probability that it is divisible by 5.
Digits can be repeated
12 years ago

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Answered by Reiny
It must end in a 5

number of cases = 7x7x7x1 = 343
12 years ago
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Question

A number of 4 different digits is formed by using 1, 2, 3, 4, 5, 6, 7. Find
the probability that it is divisible by 5.
Digits can be repeated

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