Aslam drove west 10 miles, south 5 miles, west 30 miles and north 35 miles to avoid paying a toll on a direct road. What is the length of the toll road in miles?

Correct Answer: 50
Aslam drove west 10 miles, south 5 miles, west 30 miles, and north 35 miles = west 40 miles, north 30 so we get, (30)2 + (40)2 = n2 or,900 + 1600 = n2 or,2500 = n2 ∴n = 50 or - 50 Throwing out the negative answer, we get the distance to be 50 miles ans: 50 miles