The product of two numbers is 15. If one of the factors is multiplied by 10 and the other factor remains unchanged, what is the product?
两个数相乘积为15，把其中的一个因数扩大10倍，另一个因数不变，则积为多少．
<gadget id="calculator">15 * 10</gadget>
<output>150</output>

<result>150</result>