Question

    The present ratio of the ages of A and B is 4:5. 18

    years ago, this ratio was 11:16. Find sum total of their present ages. 
    A 90 years Correct Answer Incorrect Answer
    B 110 years Correct Answer Incorrect Answer
    C 105 years Correct Answer Incorrect Answer
    D 80 years Correct Answer Incorrect Answer

    Solution

    ATQ: (4x - 18)/(5x - 18) = 11/16 64x - 288 = 55x - 198 9x = 90 x = 10 Required sum = 4x + 5x = 9x = 9 × 10 = 90 years.

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