Imagine that you take a road trip from A to D, but you have to do it in segments. Let’s say the distance from A to B is 145 miles; from B to C is 160 miles, and C to D is 115 miles. It takes you 6 hours to drive from A to D. What was your average speed (in miles per hour) during your trip from A to D? (Hint: How many miles did you drive from A to D? Then divide the total miles by the number of hours).
Choose the best answer from the options below:
A 50
B 60
C 70
D 80
E 90
1 answer
To determine the average speed, we need to divide the total distance traveled by the total time taken. The total distance traveled is the sum of the distances from A to B, B to C, and C to D, which is 145 + 160 + 115 = 420 miles. The total time taken is given as 6 hours. Thus, the average speed is 420 miles divided by 6 hours, which is 70 miles per hour. Therefore, the answer is C) 70 miles per hour.