• anonymous
A bag contains 6 red marbles and 3 yellow marbles. You are asked to draw 3 marbles from the bag without replacement. In how many ways can you draw 2 reds and 1 yellow?
  • Stacey Warren - Expert
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  • katieb
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  • anonymous
ways of selecting RRY = 6 x 5 x 3 = 90 but RRY can be rearranged in 3!/2! ways ( because in RRY there are 3elements with 2repeats ) so total ways = 90x3 = 270

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