SOLUTION: A box contains 7 red balls and 7 blue balls. If we choose three random balls, how many ways can we choose exactly 1 red ball?

Question 529348: A box contains 7 red balls and 7 blue balls. If we choose three random balls, how many ways can we choose exactly 1 red ball?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A box contains 7 red balls and 7 blue balls. If we choose three random balls, how many ways can we choose exactly 1 red ball?
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# of ways to select 1 red ball: 7
# of ways to select 2 blue: 7C2 = 21
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# of ways when select 3 to select 1 red: 7*21 = 147
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Cheers,
Stan H.
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