m3rk098 m3rk098
  • 15-05-2018
  • Mathematics
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hello can you please help me posted picture of question

hello can you please help me posted picture of question class=

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11beehshahbaz 11beehshahbaz
  • 15-05-2018
Choosing 3 mice means making a combination of 3 mice from a group of 9 mice.

So, we need to calculate the number of combinations of 9 objects taken 3 at a time which can be written as 9C3.

9C3 = 84

So, Dana can choose 3 white mice in 84 different ways.

therefore, the correct option is A
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