Herman's dad plans to drive at an average speed of 60 miles per hour, so he can cover 2*60 = <<2*60=120>>120 miles in 2 hours.
This means that after driving for 2 hours, they still have 210-120 = <<210-120=90>>90 miles left to drive.
Since Herman's dad plans to drive at an average speed of 60 miles per hour, the rest of the trip will take 90/60 = <<90/60=1.5>>1.5 hours. Answer: \boxed{1.5}.
Herman and his dad are leaving early in the morning for his lacrosse tournament. Their house is 210 miles from the tournament. They plan to stop and eat after 2 hours of driving, then complete the rest of the trip. Herman's dad plans to drive at an average speed of 60 miles per hour. How long will the second part of the trip take?
Write your answer as a whole number or a decimal.
hours
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