Problema Solution
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?
Answer provided by our tutors
SInce Dr Pepper drove for 7 hours (from 9am to 4pm) at 60 km/h, the distance from Oakville to Central City is 7*60 = 420 km.
Since H.Salt covered the same 420 in 5 hours, his speed (rate) was 420/5=84 km/h