The product of two factors is 6. If one factor is multiplied by 5 and the other factor is multiplied by 10, what is the product?
两个因数的积是6，如果一个因数扩大5倍，另一个因数扩大10倍，积是多少．
<gadget id="calculator">5 * 10</gadget>
<output>50</output>

<gadget id="calculator">6 * 50</gadget>
<output>300</output>

<result>300</result>