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    In a row of students facing north Krish is 19th from the extreme left end while Maya is 30th from the extreme right end. When both of them interchange
    Question

    In a row of students facing north Krish is 19th from the extreme left end while Maya is 30th from the extreme right end. When both of them interchange their positions. Krish becomes 36th from the extreme left and How many students are there in the row?

    A.

    66

    B.

    62

    C.

    63

    D.

    65

    Correct option is D

    Given:
    Krish's initial position: 19th from the left.
    Maya's initial position: 30th from the right.
    After swapping positions:
    Krish's new position: 36th from the left.
    Logic:

    total student = Maya old position from right + Krish new position from left - 1

    30 + 36 -1

    66 - 1

    65

    option D is correct.

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