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Two numbers are randomly picked from list 9, 10, 11, 12, 13, ....32. What is the probability being both as prime number?

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Two numbers are randomly picked from list 9, 10, 11, 12, 13, ....32. What is the probability being both as prime number?
posted Jun 16, 2017 by anonymous

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1 Answer

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7C2/24C2 = 7/92

answer Jun 16, 2017 by Kewal Singh Paneser
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