SOLUTION: A class consists of 15 students. The instructor wants to pick a group of 4 to work on a special project. i) How many different groups of 4 can he choose? ii) If a class consists

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Question 429050: A class consists of 15 students. The instructor wants to pick a group of 4 to work on a special project.
i) How many different groups of 4 can he choose?
ii) If a class consists of 10 girls and 5 boys, how many different groups of 4 are made up of 2 boys and 2 girls?
Answer by sudhanshu_kmr(1152) About Me  (Show Source):
You can put this solution on YOUR website!

i) no. of possible groups = 15C4

ii) no. of groups = 10C2 * 5C2
= 45*10
= 450