Below is an instruction that describes a task. Write a response that appropriately completes the request in English. Please answer in English.

### Instruction:
It will cost $60 to rent a sailboat and $80 per hour to rent a ski boat. Ken rented a sailboat while Aldrich rented a ski boat. How much more did it cost Aldrich to rent the ski boat than Ken to rent a sailboat for three hours a day in two days?

### Response:
Aldrich paid $80 x 3 = $<<80*3=240>>240 to rent a ski boat for 3 hours in a day.
Ken paid $60 x 3 = $<<60*3=180>>180 to rent a sailboat in 3 hours in a day.
So Aldrich paid $240 - $180 = $<<240-180=60>>60 more to rent a ski boat than Ken to rent a sailboat each day.
Therefore, it cost Aldrich $60 x 2 = $<<60*2=120>>120 more to rent a ski boat than Ken to rent a sailboat in two days.
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