How many such pairs of letters are there in the word ‘DAREDEVIL’ each of which has as many letters between them in the word as In the English alphabet ? (in both forward and backward directions)
Word - ‘DAREDEVIL’
There are 5 pairs of letters which have as many letters between them in the word as In the English alphabet
= (A,D) , (A,E) , (E,D) , (D,E) , (R,L)
=> Ans - (E)
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