B. Solve the following: 1. Three girls in the class are chosen to join the school beauty contest but only one of the girls is to represent the class. In how many ways can the selection be made? 2. There are eight boys in a basketball team. În how many ways can the coach make a selection of five?

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A: From the given data:

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A:

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Q: Que. How many 5-man squads could be chosen from a company of 20 men?

A: No. of ways of choosing 5 - man squads out of 20 men = C520…

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A:

Q: How many ways can 4 people sit in a row of 7 chairs? The number of ways 4 people can sit in a row of…

A: Given: number of chair (n)=7 number of people (x)=4

Q: Lenny has 5 friends in his neighborhood. In how many ways can he choose 3 to help him move…

A: Lennh has friends = 5 Number of friend to be chosen = 3

Q: Harry has to visit 10 cities. He can visit three in any one day, and the order in which he visits…

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A:

Q: the school awards night, a door prize is given to one person in attendance. The winner of the door…

A:

Q: The principal wants to have a teacher committee on non-semestering. There are 11 secondary teacher…

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Q: How many people eat meat?  How many do not eat meat?  How many people eat fish?

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A: Answer: a)

Q: Seven women and nine men are on the faculty in the mathematics department at a school. How many ways…

A: We use various combination to find out  the number of ways we can select a committee.

Q: A bakery has 12 different fancy cakes. In how many ways can 6 of the 12 fancy cakes be lined up in a…

A: We have to use permutation m

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