Question

    The ratio of two numbers is 10:12 and their LCM is 240.

    The numbers are:
    A 40,48 Correct Answer Incorrect Answer
    B 32,64 Correct Answer Incorrect Answer
    C 60,80 Correct Answer Incorrect Answer
    D 24,28 Correct Answer Incorrect Answer

    Solution

    Let two numbers be A and B. => A:B = 10x:12x LCM = 10 × 12 × x = 60x => 60x = 240 => x = 4 A = 10x = 10 × 4 = 40 B = 12x = 12 × 4 = 48

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