Question

George rode the 27 miles to town in 2 hours. He reduced his speed by 10 miles per hour on the

return trip. How long did the return trip take?

Answer 1

B 7.71

Explanation:

To solve this problem, we need to find the speed of George on the way to town and on the way back. We can use the formula distance = speed * time to find the speed and time.

Let s be the speed of George on the way to town, then his speed on the way back is s - 10. We know that the distance to town is 27 miles, and the time it took him to get there is 2 hours. So we can write:

27 = s * 2

Solving for s, we get:

s = 27 / 2

s = 13.5

So George’s speed on the way to town was 13.5 miles per hour, and his speed on the way back was 13.5 - 10 = 3.5 miles per hour.

Now we can find the time it took him to return by using the same formula:

27 = 3.5 * t

Solving for t, we get:

t = 27 / 3.5

t = 7.714