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Question

A person wants to go a movie. Help him to choose the correct number of different options he have with the following data:

Mall: Mall A, Mall B, Mall C
Movies: Movie A, Movie B
Ticket rate: Silver, Gold, Diamond

A
81
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B
81
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C
9
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D
18
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Solution

The correct option is D 18
Number of choices for selecting a mall = 3

Number of choices for selecting a movie = 2

Number of choices for selecting a ticket = 3

Fundamental principle of counting:
An event, M, has “m” possible outcomes. An event, N, has “n” possible outcomes. The total number of outcomes of event M followed by event N is m × n.

Total number of all possible choices will be = 3 × 2 × 3 = 18.

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