Question: The no. of permutations of letters of the word 'MISSISSIPPI' so that it begins with S and ends with ...

Question

The no. of permutations of letters of the word 'MISSISSIPPI' so that it begins with S and ends with P is

Answer 1

Solution

If S and P are arranged in first and last places, the remaining 9 letters containing 3S’s and 4I’s can be arranged in $\frac{\angle 9}{\angle 3\angle 4}$ ways or 2520 ways.