A motorist travels x miles in y hours and z minutes. What is his average speed in miles per hour?
A. x/(y+60z)
B. (60y+z)/x
C. 60x/(y+z)
D. 60x/(60y+z)
E. None of these
সঠিক উত্তরঃ
D.
60x/(60y+z)
Explanation:
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