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  4. Quantitative Aptitude
  5. Speed, Time and Distance

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

  • question_answer
    A man travels 600 km by train at 80 km/hr, 800 km by ship at 40 km/hr, 500 km by aeroplane at 400 km/hr and 100 km by car at 50 km/hr. The average speed for entire distance is

    A)  70 km/hr

    B)  \[70\frac{5}{123}km/hr\]

    C)  \[65\frac{5}{123}km/hr\]

    D)         72 km/hr

    Correct Answer: C

    Solution :

    [c] \[\text{Average}\,\,\text{speed=}\frac{\text{Total}\,\,\text{distance}}{\text{Total}\,\,\text{time}}\] \[=\frac{600+800+500+100}{\frac{600}{80}+\frac{800}{40}+\frac{500}{400}+\frac{100}{50}}=65\frac{5}{123}\,km/h\]


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