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    Find the least number to be added to 1780 to make the sum a perfect square.
    Question

    Find the least number to be added to 1780 to make the sum a perfect square.

    A.

    72

    B.

    69

    C.

    49

    D.

    46

    Correct option is B

    Given:
    Number = 1780
    Concept Used:
    To find the least number, check the square root of 1780 and the nearest perfect square.
    Solution:
    Square root of 1780 ≈ 42.19
    Nearest perfect square = 43^2 = 1849
    Therefore, 1849 - 1780 = 69

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