Carter has a 14-hour road trip.  He wants to stop every 2 hours to stretch his legs.  He also wants to make 2 additional stops for food and 3 additional stops for gas.  If each pit stop takes 20 minutes, how many hours will his road trip become?
He has a 14-hour trip and wants to stop every 2 hours so that's 14/2 = 
<gadget id="calculator">14/2</gadget>
<output>7</output>
7 pit stops.
He will make 7 pit stops plus 2 more for food and 3 more for gas for a total of 7+2+3 = 
<gadget id="calculator">7+2+3</gadget>
<output>12</output>
12 pit stops.
Each pit stop will take 20 minutes and he is making 12 stops so that's 20*12 = 
<gadget id="calculator">20*12</gadget>
<output>240</output>
240 minutes
60 minutes are in an hour and he's adding 240 minutes to his trip so that's 240/60 = 
<gadget id="calculator">240/60</gadget>
<output>4</output>
4 more hours.
His trip started as 14 hours and he will add an additional 4 hours in pit stops for a total of a 14+4 = 
<gadget id="calculator">14+4</gadget>
<output>18</output>
18 hour long trip.

<result>18</result>