How many such pairs of letters are there in the word `INKED’ each of which has as many letters between them in the word (in both forward and backward directions) as they have between them in the English alphabetical series ?
Word - 'INKED'
There are 2 pairs of letters which have as many letters between them in the word as they have between them in the English alphabetical series
= (I,K) , (E,D)
=> Ans - (E)
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