# SOLUTION: How many ways can a committe of 7 people be selected from a group of 15 people

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 Click here to see ALL problems on Permutations Question 106757: How many ways can a committe of 7 people be selected from a group of 15 peopleAnswer by jim_thompson5910(28595)   (Show Source): You can put this solution on YOUR website!I'm assuming that order does matter. Since order matters, we must use the permutation formula: Start with the given formula Plug in and Subtract to get 8 Expand 15! Expand 8! Cancel Simplify Now multiply 15*14*13*12*11*10*9 to get 32,432,400 So 15 choose 7 (where order does matter) yields 32,432,400 unique combinations