Problema Solution
The top 3 student paintings get to be part of the district showecase every year if there are 10 student paintings that are nominated this year how many different groups of 3 paintings could be part of the shoecase?
Answer provided by our tutors
no. of different groups = 10P3 = 10!/(10-3)! = 10!/7! = 10*9*8 = 720