SOLUTION: I need help with the following problem please. A car is taking a trip driving to James Town that is 80 miles away. On the return trip the car is driving 10 miles/hour slower on

Question 26966: I need help with the following problem please.
A car is taking a trip driving to James Town that is 80 miles away. On the return trip the car is driving 10 miles/hour slower on the way back. It took 20 minutes longer to get back . How fast was the car traveling on the trip to James Town and how fast was it traveling on the return trip.

Answer by Paul(988) (Show Source): You can put this solution on YOUR website!
On going he ws travelling at x mph
On way back he was travelling at x-10mph.
Total distance = 80
20 minutes = 1/3h

Use quadratic formula and solve you get

x=54.2 (rounded)

54.2-10=44.2

Hence, he speed going was 54.2mph and his speed returning was 44.2mph.
Paul.
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