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Educational materials for IPMAT and IIMB UG preparation
How many such pairs of letters are there in the word INSTRUCTION which have as many letters between them in the word as in the English alphabet?
Between S and T in the word, there are 0 letters, and similarly, in the English alphabet, there are none in between.
Between I and C in the word (NSTRU), there are 5 letters, and the same gap is there in the alphabet as well (D, E, F, G, H).
Between O and N in the word, there are 0 letters, and similarly, in the English alphabet, there are none in between.
Between N and T in the word (STRUC), there are 5 letters, and the same gap is there in the alphabet as well (O, P, Q, R, S).
Thus, we have 4 such pairs.
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