The product of two factors is 60. If one factor is doubled and the other factor is also doubled, what is the product
两个因数的积是60，一个因数扩大2倍，另一个因数也扩大2倍后，积是多少
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">60 * 4</gadget>
<output>240</output>

<result>240</result>