Answer:
The time it will take them to meet each other is <u>1 hour and 30 minutes</u>.
Step-by-step explanation:
Given:
Sally and molly are 12 miles away from each other.
Sally runs 5 mph towards Molly, and Molly walks 3 mph towards Sally.
Now, to find the time it will take them to meet each other.
Let the time be
Total distance = 12 miles.
Now, find the distance by putting formula:
Distance = speed × time.
Distance Sally runs towards Molly (D1) =
Distance Molly walks towards Sally (D2) =
Now, to get the time:
Total distance = D1 + D2.
<em>Dividing both sides by 8 we get:</em>
The time = 1 and 1/2 hour.
That is 1hour and 30 minutes.
Therefore, the time it will take them to meet each other is 1 hour and 30 minutes.