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## #1 2015-06-02 09:01:37

### Permutation And Combination:

**Question:**

In how many ways can 8 Indians and, 4 American and 4 Englishmen can be seated in a row so that all person of the same nationality sit together?

**Option A):**

4! 4!**Option B):**

8! 4! 4!**Option C):**

3! 4! 8! 4! **Option D):**

3! 8!

**Correct Answer is Option C):**

3! 4! 8! 4!

**Explanation:**

Taking all person of same nationality as one person, then we will have only three people.

These three person can be arranged themselves in 3! Ways.

8 Indians can be arranged themselves in 8! Way.

4 American can be arranged themselves in 4! Ways.

4 Englishman can be arranged themselves in 4! Ways.

Hence, required number of ways = 3!*8!*4!*4! Ways.

You cannot discover the new oceans unless you have the courage to lose the sight of the shore.

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## 2015-06-02 09:01:37

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