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Knowledge Expert
· commented
· 1 Months ago
Forward:
No pair
Reverse:
No pair
Hence, none of these is correct....
Take an other example: OPPO
In forward direction:
a pair of words OP has same number of letters between O and P as we have in English alphabet which is zero means no gap between O and P in the given word as well as in English alphabet. so, this pair will be counted. other than this no pair looks like that.
In reverse direction:
a pair of words OP has same number of letters between O and P as we have in English alphabet which is zero means no gap between O and P in the given word as well as in English alphabet. so, this pair will be counted. other than this no pair looks like that.
Hence, Number of pairs of words have as many letter as in English alphabet is two.