The product of two numbers is 160. One factor remains the same and the other factor is reduced by 4 times. What is the product?
两个数相乘积是160，一个因数不变，另一个因数缩小4倍，积是多少．
<gadget id="calculator">160 / 4</gadget>
<output>40</output>

<result>40</result>