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    Question

    A is younger than B by 6 years. If the ratio of A and B

    ages is 7:9 respectively, then find the age of A.
    A 21 years Correct Answer Incorrect Answer
    B 30 years Correct Answer Incorrect Answer
    C 25 years Correct Answer Incorrect Answer
    D 16 years Correct Answer Incorrect Answer

    Solution

    If BтАЩs age be x years, then AтАЩs age be (x - 6) years. According to question, => (x тАУ 6)/x = 7/9 => 9x тАУ 54 = 7x => x = 27 Therefore A's age = 27 тАУ 6 = 21 years

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