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    Question

    Ravi is 12 years younger than Surya. Ravi's age is 40%

    of the sum of his and Surya's age. What will be Surya's age 9 years hence? 
    A 36 Correct Answer Incorrect Answer
    B 24 Correct Answer Incorrect Answer
    C 33 Correct Answer Incorrect Answer
    D 45 Correct Answer Incorrect Answer

    Solution

    let surya's age=s ravi's age=r Given s-r=12 r=0.4(r+s) 0.6r=0.4s 0.6(s-12)=0.4s 0.6s-7.2=0.4s 0.2s=7.2 s=36 yers 9 years from now age will be 36+9=45 years

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