The product of two numbers is 12, if the product becomes 36, one of the factors remains unchanged, and the other factor is expanded by how much.
两数相乘积是12，如果积变成36，其中一个因数不变，另一个因数扩大多少．
<gadget id="calculator">36 / 12</gadget>
<output>3</output>

<result>3</result>