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[thebestkid19]

There are 10 cats and 15 dogs. However only 6 can be picked to be cleaned today.
What are the number of possible selections of 6 pets?
What are the number of outcomes if 3 are cats and 3 are dogs?
The probability that 3 cats, 3 dogs are picked when chosen at random?

 

[Dr.Peterson]

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I assume the pets are considered distinguishable. So the first question is the same as asking how many ways there are to choose 6 of these letters: ABCDEFGHIJKLMNOPQRSTUVWXY. Can you answer that?