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    Question

    The ratio of present ages of Alice and Bob is 5:7,

    respectively. Charlie, who is 3 years older than Alice, will become 40 years older after 12 years. Find the present age of Bob.
    A 45 years Correct Answer Incorrect Answer
    B 35 years Correct Answer Incorrect Answer
    C 30 years Correct Answer Incorrect Answer
    D 25 years Correct Answer Incorrect Answer
    E none of these Correct Answer Incorrect Answer

    Solution

    ATQ, Let, present ages of Alice and Bob be ‘5x’ years and ‘7x’ years respectively. So, 5x + 3 = 40 – 12 5x = 25 x = 5 Present age of Bob = 7x = 35 years

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