Question

"Charlie was 500 feet above sea level after 2 hours of hiking. When he had hiked for 6 hours, he was 740 feet above sea level. What was his speed?"

Please select the correct option:
A) 40 feet/hour
B) 60 feet/hour
C) 80 feet/hour
D) 250 feet/hour

Answer 1

Charlie's speed while hiking was 60 feet per hour, calculated by dividing the difference in altitude by the difference in time spent hiking.

Step-by-step explanation:

To find Charlie's speed in feet per hour while he was hiking, we can calculate the rate of increase in altitude over the time hiked. First, we need to find the difference in altitude. He was at 500 feet after 2 hours and reached 740 feet after 6 hours. So, the increase in altitude is 740 feet - 500 feet, which is 240 feet. Next, we find the difference in time, which is 6 hours - 2 hours = 4 hours. Now, to calculate the speed, we divide the increase in altitude by the time:

Speed = (740 feet - 500 feet) / (6 hours - 2 hours) = 240 feet / 4 hours = 60 feet/hour.

Thus, Charlie's speed was 60 feet per hour, so the correct answer is Option B).