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    Question

    75% of 'A' equals (15/8) times 'B'. Determine the ratio

    A:B, assuming A and B are co-prime numbers.
    A 1:1 Correct Answer Incorrect Answer
    B 5:2 Correct Answer Incorrect Answer
    C 1:5 Correct Answer Incorrect Answer
    D 2:5 Correct Answer Incorrect Answer

    Solution

    ATQ,

    (75/100) × A = (15/8) × B

    Or, (3/4) × A = (15/8) × B

    Or, A = (15/8) ÷ (3/4) × B = (15/8) × (4/3) × B = (5/2) × B

    So, A:B = 5:2

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