52. A highway engineer is using a road map to lay out a detour for the westbound lane of a section of highway that, on the map, is a straight line going east and west. On the map, the detour goes 4 miles straight north, 1 mile straight west, 2 miles straight north, 6 miles straight west, 3 miles straight south, 1 mile straight east, and finally 3 miles straight south, back to the highway. According to the map, how many more miles will a westbound driver travel by taking the detour than he would if he could stay on the highway ?

Answer and Explanation

Your Answer is

Correct Answer is G

Explanation

Draw the picture according to the meaning of the title. The total distance traveled by detour is: 4+1+2+6+3+1+3=20miles, and if you don’t detour, you only need to travel 6 miles, so you need to drive more by detour 20-6=14miles