7 out of 40 people in a cafeteria are wearing checkered shirts. The rest of the people are wearing vertical stripes and horizontal stripes. The number of people wearing horizontal stripes is 4 times as many as the people wearing checkered shirts. How many people are wearing vertical stripes?
40 people - 7 people = 
<gadget id="calculator">40-7</gadget>
<output>33</output>
33 people are wearing stripes.
The number of people wearing horizontal stripes is 4 horizontal stripes/checkered shirt x 7 checkered shirts = 
<gadget id="calculator">4*7</gadget>
<output>28</output>
28 horizontal stripes.
The number of people wearing vertical stripes is 33 total stripes - 28 horizontal stripes = 
<gadget id="calculator">33-28</gadget>
<output>5</output>
5 vertical stripes.

<result>5</result>