📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!


    Question

    A number ‘N’ is the greatest 3-digit number which

    gives a remainder of 2 when divided by 7, 10, and 12. Find the minimum number to be added to it to make it a perfect square.
    A 49 Correct Answer Incorrect Answer
    B 71 Correct Answer Incorrect Answer
    C 25 Correct Answer Incorrect Answer
    D 58 Correct Answer Incorrect Answer

    Solution

    ATQ,

    LCM (7, 10, 12) = 420

    420 × 2 = 840 (largest 3-digit multiple)

    N = 840 + 2 = 842

    Next perfect square = 30² = 900

    Required number = 900 - 842 = 58

    Practice Next

    Relevant for Exams:

    ask-question

    Not sure which exam is best for you Talk to our expert

    Get My Free Call