Question

How many different words can be formed using the letters of the word mississippi in which no two s are together?

Answer 1

Given wird is MISSISSIPPI

Here I=4 times,S=4 times,P=2 times,M=1 time

∴∴ Required number of words =8C4×7!4!2!8C4×7!4!2!

⇒8C4×7×6!4!2!⇒8C4×7×6!4!2!

⇒7.8C4.6C4

Answer 2

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if don't understand , then see khushi's answer , it is right