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Question

There are 3 girls & 5 boys. In how many way they can be arranged so that each girl does not sit with another girl.

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Solution

Let arrange five boys first
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we have total six groups when girls can sit but we have to select 3
6C3×5!×3!selection of place for girlsArrangement of boysArrangement of girls
6×5×43!×5!×3!=14400

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