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Tiga pasang suami istri duduk berdampingan pada satu baris. Jika setiap pasang suami istri harus duduk berdampingan, maka banyak cara mereka duduk adalah
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Q. Tiga pasang suami istri duduk berdampingan pada satu baris. Jika setiap pasang suami istri harus duduk berdampingan, maka banyak cara mereka duduk adalah
- Calculate Units Arrangement: First, treat each couple as a single unit since they have to sit together. So, we have units to arrange.Calculate the number of ways to arrange these units: .
- Calculate Couple Arrangement: Now, within each unit (couple), there are people who can switch places. So for each couple, there are ways to arrange them.Calculate the number of ways to arrange each couple: .
- Calculate Total Arrangements: Since there are couples, and each couple can be arranged in ways, multiply the number of arrangements for each couple: .
- Multiply Total Arrangements: Finally, multiply the number of ways to arrange the units (couples) by the number of ways to arrange the people within each unit.Calculate the total number of arrangements: (ways to arrange units) (ways to arrange people within units) .
