How many such pairs of letters are there in the word PREAMBLE each of which has as many letters between them in the word as in the English alphabet ?
For the given word PREAMBLE, lets start with P. Now PR is not a possible pair as it does not have any letter between them whereas in english alphabets there is 1 letter between P and R. Similarly PE and PA pairs are also not possible. On checking in a similar manner, we can see that EB and AE are the only pairs which meets the requirements. So the correct option is option 3.
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