Aperson travels by car from one city to another. she drives for 34.8 min at 72.3 km/h, 8.04 min at 85.2 km/h, 47.8 min at 35.2 km/h, and spends 11.9 min along the way eating lunch and buying gas. determine the distance between the cities along this route. answer in units of km.

Thank you for posting your question here at . I hope the answer will help you. Feel free to ask more questions.

Below is the solution:

Distance is the sum of: 40 km (.5*80), 20 (.2*100), and 30 (.75*40).
Distance equals 40 + 20 + 30 = 90 km Total distance = 90 km.
Total time (including lunch break) is 1/2 hr + 1/5 hr +3/4 hr or .5 + .2 + .75 = 1.45 hrs

Average speed for trip: 90/1.45 =62.07 km/kr