Question

Morgan begins biking south to the park at 20mph at noon. Corona leaves from the same point 15 min (.25hr) later to catch her. How long will it take him to catch Morgan?

Answer 1

Answer:

X = 1h15mins

Step-by-step explanation:

      Rate Time  Distance  

Morgan  20    X              20X

Corona  25  X – ¼  25(X – ¼)  

If they meet each other, they need to travle the same distance, mean :  

20X = 25(X – ¼)  

X = 1.25  

1 hour and 15 minutes