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Railways R.R.C. (Secundrabad) Solved Paper Held on 1-12-2013

  • question_answer
    A number whose double is 45 greater than its half is?

    A) 50                    

    B) 45

    C) 40                                

    D) 30

    Correct Answer: D

    Solution :

    Let the no. be x  \[2x-\frac{1}{2x}=45\] \[1.5x=45\]          \[x=\frac{45}{1.5}=30\]


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