Final answer:
Jasper will take 3/8 hour (or 22.5 minutes) to walk 1.5 miles.
Step-by-step explanation:
To find out how long it will take Jasper to walk 1.5 miles, we can use the information given. We know that Jasper can walk 1/2 mile in 1/4 hour. To find out how long it will take him to walk 1.5 miles, we can set up a ratio:
1/2 mile / 1/4 hour = 1.5 miles / x hours
To solve for x, we can cross multiply and then divide:
1/2 * x = 1.5 * 1/4
x = (1.5 * 1/4) / (1/2)
x = 3/8 hour
Therefore, it will take Jasper 3/8 hour (or 22.5 minutes) to walk 1.5 miles.