SOLUTION: Dan the Driver travels at 50 km at 80 km/h, 30 km at 60 km/h, and 80 km at 100 km/h. Find Dan's average speed in km/h.

Question 1199430: Dan the Driver travels at 50 km at 80 km/h, 30 km at 60 km/h, and 80 km at 100 km/h. Find Dan's average speed in km/h.
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.
Dan the Driver travels at 50 km at 80 km/h, 30 km at 60 km/h, and 80 km at 100 km/h.
Find Dan's average speed in km/h.
~~~~~~~~~~~~~~~~~~~~

The average speed is the total distance divided by the total time

    average speed =  =  = 

                  =  =  =  =  = 83.169 km/h  (rounded).   ANSWER

Solved.

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