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30-06-2020
Mathematics

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How many different ways can the letters of "kissing" be arranged?

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xiaotongexiongp53gk1 xiaotongexiongp53gk1

30-06-2020

Answer:1260

Step-by-step explanation:

Kissing has 7 letters, and there are 2 paris of the same letter.

[tex]\frac{7!}{2!2!}[/tex] = [tex]\frac{7*6*5*4*3*2*1}{4}[/tex]= 1260

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