Question

    The LCM of two numbers is 3 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 75 Correct Answer Incorrect Answer
    B 42 Correct Answer Incorrect Answer
    C 66 Correct Answer Incorrect Answer
    D 54 Correct Answer Incorrect Answer

    Solution

    LCM = 3 HCF HCF+3HCF = 240 4HCF = 240 HCF = 60 LCM = 3 × 60 = 180 Second number = (LCM × HCF)/First number => (180 × 60)/200 => 54

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