Dr Pepper left Oakville at 900AM and drove to Central City a

Dr. Pepper left Oakville at 9:00AM and drove to Central City at 60 km/h H. Salt left Oakville at 11:00AM and traveled the same route to Central City. If both mean arrived in Central City at 4:00PM, at what rate did H. Salt travel?

Solution

Pepper DATA:
rate = 60 km/h ; time = 7 hrs ; distance = rt = 420 km
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Salt DATA:
time = 5 hrs;
distance = 420 km ;
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rate = distance/time = 420/5 = 84 km/h