When Jack traveled to Canada, he had to wait 20 hours to get through customs, plus 14 days in coronavirus quarantine. How many hours total did Jack have to wait?
First convert the quarantine wait time to hours by multiplying the number of days by the number of hours in a day: 14 days * 24 hours/day = 
<gadget id="calculator">14*24</gadget>
<output>336</output>
336 hours.
Then add the time Jack spent waiting in customs to the quarantine time: 336 hours + 20 hours = 
<gadget id="calculator">336+20</gadget>
<output>356</output>
356 hours.

<result>356</result>