Discussion
Find out how many such pairs of letters are there in the given word each of which has as many letters between them in the word as in the English alphabet.
I N C R E D I B L E
Answer: C
There are 8 such pairs.
A pair qualifies when the gap between two letters in the word equals their gap in the alphabet. Checking every pair in I N C R E D I B L E (counting both forward and backward order in the alphabet) gives:
I-E, I-D, I-B (the first I with E, D and B), N-I, C-E, E-D, E-B and D-B.
For example, I and E are four places apart in the word (I N C R E) and four apart in the alphabet (E F G H I). That makes 8 pairs; the smaller options miss some of them.
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