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How many ways can you choose 1 red ball?

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A bag contains 9 red balls and 6 white balls. Suppose we choose 3 random balls. How many ways can we choose exactly 1 red ball?
asked Mar 8, 2014 in ALGEBRA 2 by skylar Apprentice

1 Answer

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A bag contains 9 red balls and 6 white balls .

Suppose we choose 3 random balls.

Number of ways to select 1 red ball : 9

Number of ways to select 2 white balls : image

image

image

Number of ways when select 3 balls to select 1 red ball : image.

Solution : 135 ways we can choose exactly 1 red ball.

answered Apr 19, 2014 by friend Mentor

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