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Railways Sample Paper RRB (Assistant Loco Pilot) Sample Test Paper-17

  • question_answer
    If a man walks to his office at 3/4 of his usual rate, he reaches office 1/3 of an hour later than usual. What is his usual time to reach office.

    A)  \[\frac{1}{2}hr\]                       

    B)  \[1\,hr\]                        

    C)  \[\frac{3}{4}hr\]               

    D)         None of these

    Correct Answer: B

    Solution :

    If new speed is \[\frac{a}{b}\]of original speed, then usual time \[\times \left( \frac{b}{a}-1 \right)=\] change in time \[\therefore \]  usual time \[\times \left( \frac{4}{3}-1 \right)=\frac{1}{3}\] \[\Rightarrow \]  usual time \[=\frac{1}{3}\times 3=1hr\]


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