Known: A+B=286, ((A)/(B))=25, how much is AB=.
已知：A+B=286，((A)/(B))=25，求A-B=多少．
<gadget id="calculator">25 * 11</gadget>
<output>275</output>

<gadget id="calculator">275 - 11</gadget>
<output>264</output>

<result>264</result>