Grayson first travels 1 * 25 = <<1*25=25>>25 miles

Then Grayson travels 0.5 * 20 = <<0.5*20=10>>10 miles

Grayson travels a total of 25 + 10 = <<25+10=35>>35 miles

Rudy travels 3 * 10 = <<3*10=30>>30 miles

Grayson travels 35 - 30 = <<35-30=5>>5 miles more than Rudy

# Answer

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<|im_start|>system
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<|im_start|>user
Grayson drives a motorboat for 1 hour at 25 mph and then 0.5 hours for 20 mph. Rudy rows in his rowboat for 3 hours at 10 mph. How much farther, in miles, does Grayson go in his motorboat compared to Rudy?
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user
5
Grayson drives a motorboat for 1 hour at 25 mph and then 0.5 hours for 20 mph. Rudy rows in his rowboat for 3 hours at 10 mph. How much farther, in miles, does Grayson go in his motorboat compared to Rudy?
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