Susan had a bouquet of 3 dozen roses.  She gave half to her daughter, and then placed the rest in a vase.  The next day, one-third of the flowers in the vase were wilted.  After removing the wilted flowers, how many flowers remained in the vase?
Susan had a bouquet of 3 dozen roses, which is 3*12=
<gadget id="calculator">3*12</gadget>
<output>36</output>
36 flowers.
She gave half, 36/2=
<gadget id="calculator">36/2</gadget>
<output>18</output>
18, to her daughter.
Then she placed her 36-18=
<gadget id="calculator">36-18</gadget>
<output>18</output>
18 remaining flowers in a vase.
One-third of the 18 flowers in the vase wilted, resulting in 18/3=
<gadget id="calculator">18/3</gadget>
<output>6</output>
6 wilted flowers.
After removing the wilted flowers, Susan had 18-6=
<gadget id="calculator">18-6</gadget>
<output>12</output>
12 flowers remaining in the vase.

<result>12</result>