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whats the difference between number 27 and 89
27 asked. There are 12 members of a Demo. party at a meeting. How many groups of 3memberss can be formed:
to solution did 12!/9!3! to get 220
now number 89 asks: how many 3 letter licese plates can be formed from letters A,B,C,D,E,F if each letter is to be used only once?
to me the three letter pretty much represents the 3 members per group of question 27.....and the A,B,C,D,E,F represent the 12 members of the party
in this question they just did 6!/3! to get 120
why do they do it diff?
27 asked. There are 12 members of a Demo. party at a meeting. How many groups of 3memberss can be formed:
to solution did 12!/9!3! to get 220
now number 89 asks: how many 3 letter licese plates can be formed from letters A,B,C,D,E,F if each letter is to be used only once?
to me the three letter pretty much represents the 3 members per group of question 27.....and the A,B,C,D,E,F represent the 12 members of the party
in this question they just did 6!/3! to get 120
why do they do it diff?
