The product of two factors is 50, one of the factors is doubled, and the other factor remains the same, what is the product?
两个因数相乘的积是50，其中一个因数扩大2倍，另一个因数不变，积是多少．
<gadget id="calculator">50 * 2</gadget>
<output>100</output>

<result>100</result>