SOLUTION: I'm having difficulty with the following problem: At 9 PM. Lucy started to gallop her horse at 20 miles per hour to catch Edmund, who had a three hour head start. If Lucy was s

Question 134493: I'm having difficulty with the following problem:
At 9 PM. Lucy started to gallop her horse at 20 miles per hour to catch Edmund, who had a three hour head start. If Lucy was still 30 miles behind at 11 PM, how fast was Edmund riding? Any assistance could be very much appreciated!
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
at 11PM, Lucy had ridden 40 mi.(2*20) __ Edmund was 30 mi ahead, so he had ridden 70 mi
__ since he had a 3 hr head start, he has gone 70 mi in 5 hr (14 mph)
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