One morning Martin drove 80 miles in 2 hours After lunch he

One morning Martin drove 80 miles in 2 hours. After lunch, he covered 100 miles more in 3 hours. What was his average rate of speed in miles per hour, for the 5 hours of drivig?
a. 35
b. 36
c. 37
d 45

Solution

Total miles = 80 + 100 = 180 miles
Total time = 2 + 3 = 5 hrs
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Average rate = total distance/total time = 180/5 = 36 mph