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In how many ways can the letters of the word PERMUTATIONS be arranged if the (i) words start with P and end with S, (ii) vowels are all together, (iii) there are always 4 letters between P and S?

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RD SHARMA ENGLISH-PERMUTATIONS-All Questions
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  2. If the letters of the word ‘MOTHER’ are written in all possible orders...

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  4. In how many ways can the letters of the word PERMUTATIONS be arrang...

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  5. (i) How many different words can be formed with letters of the word ‘S...

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