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show that the number of six letter words that can be formed out of letters of word assist in which s's alternate with each other is 12 .how?

show that the number of six letter words that can be formed out of letters of word assist in which s's alternate with each other is 12 .how?

Grade:11

1 Answers

Badiuddin askIITians.ismu Expert
147 Points
11 years ago

Dear manisha

all  s can be placed at even places  or at odd places in = 2 ways

rest three places can be filled by =3*2*1 = 6 ways

so total ways = 2*6 =12

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