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There are 7 red balls and 5 blue balls in a jar. If 3 balls

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by Max@Math Revolution » Mon Aug 22, 2016 6:59 pm
There are 7 red balls and 5 blue balls in a jar. If 3 balls are selected from the jar, what is the probability that 3 balls selected are red balls?
A. 19/44
B. 5/44
C. 3/41
D. 13/44
E. 7/44

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by ukgmat » Tue Aug 23, 2016 3:52 am
7/12*6/11*5/10=7/44
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by Max@Math Revolution » Wed Aug 24, 2016 6:09 pm
From 7C3/12C3=7/44, the correct answer is E.
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