A car averages 25 miles per gallon of gasoline when driven in the city and 40 miles per gallon when drives on the highway. According to these rates, which of the following is closest to the number of miles per gallon that the car averages when it is driven 10 miles in the city and then 50 miles on the highway?

Correct Answer: 36
10 miles in City while it gives 25 miles/gal in city, so 10 miles will consume: 1025 = 25 gal. 10 miles on highway while if gives 40 miles/gal on highway, so 10 miles will consume: 1040 = 14 40 miles on highway whiles if gives 40 miles/gal on highway, so 40 miles will consume: 4040 = 1 gallon Total gal. = 1 + 25 + 14 = 3320 Total distance = 10 + 50 = 60 So avg. is = 603320 = 36