Question

Elena and Jada are 12 miles apart on a path when they start moving toward each other. Elena runs at a constant speed of 5 miles per hour, and Jada walks at a constant speed of 3 miles per hour. How long does it take until Elena and Jada meet?

Answer 1

Answer:

1.5 hour or 90 minutes

Step-by-step explanation:

The  total distance betwenn Elena and Jada is 12 miles.

Now, it is also given that Elena runs at a constant speed of 5 miles per hour, and Jada walks at a constant speed of 3 miles per hour. Therefore, the total speed of both of them combined is 8 miles per hour.

Now, we know that the total time taken by Elena and Jada to meet will be given by dividing total distance by total time.

Therefore, total time=$\frac{12}{5+3}=\frac{12}{8}=1.5$ hours.

Therefore, it takes 1.5 hours (or equivalently 90 minutes) until Elena and Jada meet.