The product of two factors is 10, if one factor is expanded to 8 times the original factor, and the other factor is reduced to the original (1/4), what is the product at this time?
两个因数的积是10，如果一个因数扩大到原来的8倍，另一个因数缩小到原来的(1/4)，这时积多少．
<gadget id="calculator">20 * 1</gadget>
<output>20</output>

<result>20</result>