Question

Sarah is going on a hiking trip. She starts hiking at 10 AM and hikes until 12 PM when she stops for lunch. She realizes she hiked 3.5 miles. The trail she is following is 7.5 miles long. She reaches the end of the trail at 3 PM. Determine the number of hours Sarah hiked per hour.

A) 0.5 miles per hour
B) 1 mile per hour
C) 1.5 miles per hour
D) 2 miles per hour

Answer 1

Sarah hiked at an average speed of 1.75 miles per hour.

Step-by-step explanation:

To determine the number of hours Sarah hiked per hour, we first need to find the total hiking time. Sarah started hiking at 10 AM and stopped for lunch at 12 PM, which is a total of 2 hours. She hiked a distance of 3.5 miles during this time. To find the average hiking speed, we divide the total distance by the total time:

Average Speed = Distance / Time = 3.5 miles / 2 hours = 1.75 miles per hour

Therefore, Sarah hiked at an average speed of 1.75 miles per hour. The closest option to this is option C) 1.5 miles per hour.