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Railways Quantitative Aptitude Speed, Time and Distance Question Bank Time, Speed and distance Sample Test Paper-12

  • question_answer
    A truck travels a distance of 240 km in 6 hours, partly at a speed of 60 km/hr and partly at 30 km/hr. Find the time for which it travels at 60 km/hr.

    A)  1 H                 

    B)  2 H

    C)  3 H     

    D)  5 H

    Correct Answer: B

    Solution :

    [b] Let the truck travels for ?t? hour at 60 km/hr. \[\therefore \] \[60\times t+30\times (6-t)=240\] \[\Rightarrow \] \[60t+180-30t=240\] \[\Rightarrow \] \[30t=60\] \[\Rightarrow \] \[t=2\,hr.\] \[\therefore \] Truck travels 2 hours at 60 km/hr.


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