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In how many ways can 6 boys be arr...

In how many ways can 6 boys be arranged at a round table so that 2 particular boys may be together ?

A

a. 24

B

b. 48

C

c. 360

D

d. 60

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem of arranging 6 boys at a round table such that 2 particular boys are always together, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Arrangement**: When arranging objects in a circle, the formula to calculate the number of arrangements is (n - 1)!, where n is the number of objects. Here, we have 6 boys. 2. **Grouping the Two Particular Boys**: Since we want the two particular boys (let's call them Boy A and Boy B) to sit together, we can treat them as a single unit or group. This means instead of 6 individual boys, we now have 5 units to arrange: the group (AB) and the other 4 boys (C, D, E, F). 3. **Calculating the Arrangements of the Groups**: Now, we need to arrange these 5 units around the round table. Using the formula for circular arrangements, we have: \[ \text{Arrangements} = (5 - 1)! = 4! = 24 \] 4. **Arranging the Boys within the Group**: Within the group (AB), Boy A and Boy B can be arranged in 2 different ways (AB or BA). Therefore, we multiply the arrangements of the groups by the arrangements within the group: \[ \text{Total Arrangements} = 4! \times 2! = 24 \times 2 = 48 \] 5. **Final Answer**: Thus, the total number of ways to arrange the 6 boys at a round table such that the two particular boys are together is **48**.
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