Thursday, 6 February 2014

Question of the Day No. 32


A boy went to school on Bike with the speed of 40 km/h. Then he went to his coaching classes on Bike with the speed of 30 km/h. Find the Average Speed in his whole journey?

a) 70 km/h     b) 35 km/h     c) 38 km/h    d) Can't be Determined    e) None of these
Answers and Explanations are welcome in comments
The Correct Answer will be Given Tomorrow
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1 comment:

  1. Unknown6 February 2014 at 19:28

    Correct Answer is :(d) "Can't be determined"
    Explanation : Speed is a efficiency and we can't calculate average of speed with simple average's formula

    Kindly Note down the formula to calculate of Average Speed

    Average Speed = Total Distance Covered / Total Time Taken

    We can't determined Average Speed if don't know about Distance. If distance given or Distance is same then we can calculate average speed otherwise the answer is can't be determined.

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