A farmer drives a tractor from one town to another, a distance of 200 kilometers. He drives 10 kilometers per hour faster on the return trip, cutting 1 hour off the time. How fast does he drive each way?
?
A. 70 kph going and 90 returning
B. 40 kph going and 100 returning
C. 70 kph going and 50 returning
D. 40 kph going and 50 returning
E. 50 kph going and 60 returning
Answer: D
Mathematics
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