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    Question

    The ratio of the present ages of Ginni and Binni is 8:5

    respectively. Ginni is ‘n’ years older than Binni. If after 5 years, the ratio of the ages of Binni to Ginni is 2:3, then find the value of √(n+1).
    A 3 Correct Answer Incorrect Answer
    B 5 Correct Answer Incorrect Answer
    C 4 Correct Answer Incorrect Answer
    D 8 Correct Answer Incorrect Answer
    E 6 Correct Answer Incorrect Answer

    Solution

    Let the present ages of Ginni and Binni be 8x and 5x respectively. Here, n = 8x – 5x = 3x According to the question, => (8x + 5)/(5x + 5) = 3/2 => x = 5 Now, n = 3x = 15 Required value = √(n+1) = √(15+1) = √16 = 4

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