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find the no. of 6 letter words that can be formed using letters of the word SQUARE such that U and A always appear together.

 Oct 15, 2020
 #2
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S Q UA R E. Ordinarily, 6 letters would give you 6! = 720 permutations. But since you want the letters "UA" always together, then as Melody often says, "rope them together", or consider them as one letter. So, instead of having 6 letters or 6! permutations, you will simply have 5! = 120 permutations.

 
 Oct 15, 2020
 #3
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It is really nice to see that you have learned from me.   It is a pity that you are a guest and not a member but not to worry.

 

Your answer is almost correct.

Note that it could be   ua  or    au   so you will need to multiply your answer by 2.  wink

 
Melody  Oct 19, 2020

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