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    Question

    A is younger than B by 3 years. If the ratio of A and B

    ages is 7:10 respectively, then find the age of A.
    A 5 years Correct Answer Incorrect Answer
    B 12 years Correct Answer Incorrect Answer
    C 7 years Correct Answer Incorrect Answer
    D 16 years Correct Answer Incorrect Answer
    E 10 years Correct Answer Incorrect Answer

    Solution

    If BтАЩs age be x years, then AтАЩs age be (x - 3) years. According to question, => (x тАУ 3)/x = 7/10 => 10x тАУ 30 = 7x => x = 10 Therefore A's age = 10 тАУ 3 = 7 years

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