Dan has two times as many stickers as Tom. Tom has 3 times as many stickers as Bob. If Bob has 12 stickers, how many does Dan have?
Tom has 3*12=
<gadget id="calculator">3*12</gadget>
<output>36</output>
36 stickers.
Dan has 2*36= 
<gadget id="calculator">2*36</gadget>
<output>72</output>
72 stickers.

<result>72</result>