A plane travels 1200 miles in 3 hours. At the same rate, how many additional hours would it take to travel an additional 2000 miles?
The rate is 1200/3=
<gadget id="calculator">1200/3</gadget>
<output>400</output>
400 mph.
Then it would take 2000/400=
<gadget id="calculator">2000/400</gadget>
<output>5</output>
5 hours more.

<result>5</result>