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SSC Sample Paper Mock Test-15 SSC CGL Tear-II Paper-1

  • question_answer
    A man goes from Mysore to Bengaluru at a uniform speed of 40 km/h and comes back to Mysore at a uniform speed of 60 km/h. His average speed for the whole journey is

    A) 48 km/h

    B)  50 km/h

    C)  54 km/h

    D)  55 km/h

    Correct Answer: A

    Solution :

    Average speed \[=\left( \frac{2xy}{x+y} \right)\text{km/h}\] \[=\left( \frac{2\times 40\times 50}{40+60} \right)\text{km/h}=48\,\,\text{km/h}\]


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