Question

Asked Sep 30, 2019

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Step 1

Given that there are 3 boys and 2 girls. There are a total of 5 people.

(a) Since, there is no specification of gender, 3 boys and 2 girls can be arranged in 5! ways,

that is,

Step 2

(b) There only 2 possible ways to seat the group because boys and girls are each to sit

together.

The possible number of ways is calculated as shown below.

Step 3

Thus, there are 24 ways to make the boys and girls each to sit together.

(c) Here, the girls have to be seated together. Now, there are totally 4 objects, that is the

group of girls is considered as one objects, 3 boys and 1...

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