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    Question

    Asim is four years older than his brother Basu who is

    thrice as old as Chetan. If Asim is four times as old as Chetan, then how old (in years) is Basu?
    A 12 Correct Answer Incorrect Answer
    B 16 Correct Answer Incorrect Answer
    C 20 Correct Answer Incorrect Answer
    D 24 Correct Answer Incorrect Answer

    Solution

    Let Chetan's age be c years. Then, Basu's age = 3c years. Asim's age = 3c + 4 years (4 years older than Basu). Also, Asim's age = 4c years (4 times Chetan). Therefore, 4c = 3c + 4 => c = 4. So, Basu's age = 3c = 3*4 = 12 years.

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