Friday, 17 June 2016

Permutation and Combination Multiplication rule and Exercise


Permutation and Combination Multiplication Rule

Example:   A NBA Basketball team, Phoenix Sun roster consist of six Guards, four Fowards and three Centers. In how many ways can the coach select a starting line up of two guards, two Fowards and one Center?




Permutation and Combination Exercise

1) In sport house of 24 students, a first and second prize are to be awarded. In how many                      different ways can this be done?

2) In a room of 20, 12 are girls and the rest are boys. A student body of 2 prefects are to be                    elected. How many ways can they be chosen if:

    a. Both prefects elected are girls
    b. Both prefects elected are boys
    c. 1 girl and 1 boy prefects

3) A fan club has 28 members. In how many ways can the president, web-designer and admin            be chosen to form a committee of three?

4) In how many ways can a football team of 11 players be chosen from 30 people?

5) In how many ways can a committee of 7 be chosen from 9 office pairs if:

a. The committee must have 3 men and 4 women
b. No restriction are made
c. The committee are all elected by men

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