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CBSE Class 11-science Answered

Find the no. Of arrangements  of the letters of the  word Delhi if e always  comes before i.
Asked by Sh1989kishore | 22 Oct, 2018, 10:12: PM
answered-by-expert Expert Answer
The total number of letters in the word DELHI is 5.
 
We have to fing the no. Of arrangements  of the letters of the  word Delhi,
if E always  comes before I.
 
take EI as one letter .
 
So, the number of letter now we have are 4.
 
Therefore the no. Of arrangements  of the letters of the  word Delhi,
if E always  comes before I = 4! = 24

Answered by Yasmeen Khan | 23 Oct, 2018, 11:26: AM

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