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SSC Sample Paper SSC-CGL TIER - I Sample Test Paper-2

  • question_answer
    A motorist travels to a place 150 km away at an average speed of 50 km/hr and returns at 30 km/hr. His average speed for the whole journey in km/hr is:

    A)  37.5                

    B)  37

    C)  35                   

    D)  40

    Correct Answer: A

    Solution :

     Time taken to move 150 km up the journey \[=\frac{150}{30}=3\,\,hrs.\] Time taken to move 150 km down the journey \[=\frac{150}{30}=5\,\,hrs.\] Average speed = \[\frac{150+150}{3+5}\] = \[\]


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