Question

A person takes a trip, driving with a constant speed of 98.5 km/h except for a 21.0 min rest stop. If the person's average speed is 63.3 km/h, how much time is spent on the trip and how far does the person travel?

How much time in hours and how far in km

Answers

bobpursley
distance is not known.

but we know this:
avgspeed*(timedriving+21min)=constantspeed*time

Now I intentionally avoided the difficult part: Change the speed to m/s (from km/hr) and change the time 21min to seconds. You can do other units, but they must be consistent.

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