PrepTest 87, Section 1, Question 9
A television station must determine the order in which five commercials, each advertising a single product—fast food, granola, pizza, sportswear, or trucks—are to be aired during the five slots available in a commercial break. The order of the commercials is subject to the following constraints:
A television station must determine the order in which five commercials, each advertising a single product—fast food, granola, pizza, sportswear, or trucks—are to be aired during the five slots available in a commercial break. The order of the commercials is subject to the following constraints:
A television station must determine the order in which five commercials, each advertising a single product—fast food, granola, pizza, sportswear, or trucks—are to be aired during the five slots available in a commercial break. The order of the commercials is subject to the following constraints:
A television station must determine the order in which five commercials, each advertising a single product—fast food, granola, pizza, sportswear, or trucks—are to be aired during the five slots available in a commercial break. The order of the commercials is subject to the following constraints:
The pizza commercial must be aired earlier than the granola commercial.
The sportswear commercial must be aired earlier than the truck commercial.
The fast-food and sportswear commercials must be aired consecutively.
How many of the commercials are there any one of which could be aired second?
five
four
three
two
one
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