SOLUTION: A tutorial class contains 7 male students and 5 female students. Find the number n of ways that the class can elect: a) a class representative. b) two class representatives, one

Algebra ->  Permutations -> SOLUTION: A tutorial class contains 7 male students and 5 female students. Find the number n of ways that the class can elect: a) a class representative. b) two class representatives, one       Log On


   

Question 1172424: A tutorial class contains 7 male students and 5 female students. Find the number n of ways that the class can elect:
a) a class representative.
b) two class representatives, one male and one female.
c) a class representative and a deputy class representative.
Answer by ikleyn(52778) About Me  (Show Source):
You can put this solution on YOUR website!
.

All these questions are quite elementary. 

    (a)  7+5   =  12   ways.


    (b)  7*5   =  35   ways.


    (c)  12*11 = 132   ways.

These answers are SELF-EVIDENT and do not require explanations.