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    Question

    The LCM of two numbers is 5 times of their HCF. The sum

    of LCM and HCF is 240. If one of the number is 200, then the other number is:
    A 90 Correct Answer Incorrect Answer
    B 70 Correct Answer Incorrect Answer
    C 40 Correct Answer Incorrect Answer
    D 50 Correct Answer Incorrect Answer

    Solution

    LCM = 5 HCF HCF＋5HCF = 240 6HCF = 240 HCF = 40 LCM = 5 × 40 = 200 Second number = (LCM × HCF)/First number => (200 × 40)/200 => 40

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