Problem Statement
A car travels 120 km at 60 km/h and then 180 km at 90 km/h. What is the average speed for the whole trip?
Explanation
Total distance is three hundred. Time is two hours plus two hours equals four hours. Average speed equals distance over time equals three hundred over four equals seventy five.
Code Solution
SolutionRead Only
Vavg = (120+180)/(120/60 + 180/90) = 300/4 = 75
Practice Sets
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