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In how many ways can the letters of the ...

In how many ways can the letters of the word ENGLISH be arranged if
i. all the letters are used at a time
ii. Words start with E and end in H

Text Solution

Verified by Experts

The correct Answer is:
i. `""^(7)P_(7)=7!`
ii. `""^(5)P_(5)=5!`
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NEW JOYTHI PUBLICATION-PERMUTATIONS AND COMBINATIONS-QUESTIONS FROM COMPETITIVE EXAMS
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  15. If ""^(n)C(3)=220, then n = ?

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