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    Question

    Compare the rates of two trains, one travelling at 40 km

    an hour and the other at 30 m a second?  
    A 10:27 Correct Answer Incorrect Answer
    B 27:10 Correct Answer Incorrect Answer
    C 15:16 Correct Answer Incorrect Answer
    D 16:15 Correct Answer Incorrect Answer

    Solution

    Speed in ratio = 40 km/hr : 30 m/sec  × (18/5) = 40:108 = 10:27

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