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?
Ken paid $60 x 3 = $
<gadget id="calculator">60*3</gadget>
<output>180</output>
180 to rent a sailboat for 3 hours in a day.
Aldrich paid $80 x 3 = $
<gadget id="calculator">80*3</gadget>
<output>240</output>
240 to rent a ski boat in 3 hours in a day.
So Aldrich paid $240 - $180 = $
<gadget id="calculator">240-180</gadget>
<output>60</output>
60 more to rent a ski boat than Ken to rent the sailboat each day.
Therefore, it cost Aldrich $60 x 2 = $
<gadget id="calculator">60*2</gadget>
<output>120</output>
120 more to rent a ski boat than Ken to rent the sailboat in two days.

<result>120</result>