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John has 12 marbles of different colors, including one red, one green, and one blue marble. in how many ways can he choose 4 marbles, if exactly one of the chosen marbles is red…

John has 12 marbles of different colors, including one red, one green, and one blue marble. in how many ways can he choose 4 marbles, if exactly one of the chosen marbles is red…
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5 votes
John has 12 marbles of different colors, including one red, one green, and one blue marble. in how many ways can he choose 4 marbles, if exactly one of the chosen marbles is red, green, or blue?

asked
User Balderman
by
8.0k points

2 Answers

4 votes

Answer:

252

Explanation:

AoPs

answered
User Teggy
by
7.7k points
3 votes
3 ways (uncertain)
1 red or blue or green + 3 other colours
answered
User Veeresh Honnaraddi
by
8.3k points
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