The product of two factors is 1.6, if one factor is multiplied by 2 and the other is multiplied by 5, what is the product?
两个因数的积是1.6，如果一个因数扩大2倍，另一个因数扩大5倍，积是多少．
<gadget id="calculator">1.6 * 2 * 5</gadget>
<output>16</output>

<result>16</result>