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    Question

    The LCM of two numbers is 12 times their HCF. The sum of

    LCM and HCF is 403 and if both the number are smaller than their LCM. Find both the numbers?
    A 82,126 Correct Answer Incorrect Answer
    B 74,130 Correct Answer Incorrect Answer
    C 93, 124 Correct Answer Incorrect Answer
    D 92,148 Correct Answer Incorrect Answer

    Solution

    HCF = H, LCM = 12H Sum тЖТ H + 12 H = 403 H = 31 HCF = 31 ┬а ┬а ┬а ┬аLCM = 12 ├Ч 31 H = 31 Let NoтАЩs 31x ┬а ┬а ┬а31y LCM тЗТ 31xy = 12 ├Ч 31 тЗТ xy = 12 If (1, 12) тЗТ 1 ├Ч 31 = 31, 31 ├Ч 12 = 372 тЖТ not less than LCM If (3, 4) тЗТ 3 ├Ч 31 , 4 ├Ч 31 = 93, 124┬а

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