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Railways Sample Paper RRB (Group D) Sample Test Paper-1

  • question_answer
    What must be added to each term of the ratio 7: 11, so as to make it equal to 3: 4?

    A)  8                    

    B)  7.5

    C)  6.5                              

    D)  5

    Correct Answer: D

    Solution :

    [d] Let the required number be x. \[\therefore \frac{7+x}{11+x}=\frac{3}{4}\] \[\Rightarrow 28+4x=33+3x\] \[\Rightarrow x=33-\,28=5\]


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