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    Question

    In the word ‘BACKSPACE’, first all the letters are

    written in an alphabetical order form, then remove all the vowels from the arrangement then how many such pair/pairs of letters are there, each of which have as many letters between them in the word (forward direction) as they have between them in the English alphabetical series?
    A None Correct Answer Incorrect Answer
    B Two Correct Answer Incorrect Answer
    C One Correct Answer Incorrect Answer
    D Three Correct Answer Incorrect Answer
    E Four Correct Answer Incorrect Answer

    Solution

    there is only one pair BC. 

    The word -

    B A C K S P A C E

        A A B C C E K P S

        B C C K P S 

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