Jen decides to travel to 3 different countries.  He has to pay $400 for the supplies he needs, in total.  The tickets for travel cost, in total, 50% more than the supplies.  How much does travel cost?
He pays 400*.5=$
<gadget id="calculator">400*.5</gadget>
<output>200</output>
200 more for tickets than supplies.
That means the tickets cost 400+200=$
<gadget id="calculator">400+200</gadget>
<output>600</output>
600.
So it cost 600+400=$
<gadget id="calculator">600+400</gadget>
<output>1_000</output>
1000 in total.

<result>1_000</result>