The product of multiplying two numbers is 40, one of the factors remains unchanged, and the other factor is multiplied by 5, what is the product?
两个数相乘的积是40，其中一个因数不变，另一个因数乘5，积是多少．
<gadget id="calculator">5 * 40</gadget>
<output>200</output>

<result>200</result>