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    Question

    In a row of students from the top to bottom, Richa is

    12th from the top and Chetna is 22nd from the bottom. Rai is 13places below Richa and 23 places above Chetna. How many students are there in the row?
    A 69 Correct Answer Incorrect Answer
    B 68 Correct Answer Incorrect Answer
    C 67 Correct Answer Incorrect Answer
    D 66 Correct Answer Incorrect Answer

    Solution

    Given that, Rank of Richa from the top i.e., 12th   Rai is 13 places below from Richa which means Rai is (12 + 13) = 25 from the top. Rank of Chetna from the bottom i.e., 22nd   Rai is 23 places above from Chetna which means rank of Rai from the bottom (22 + 23) = 45 Now, we get the ranks of Rai from top and bottom which means we can find the total number of students in the row i e 25 + 45 – 1 = 69

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