The product of multiplying two numbers is 60. One multiplier is multiplied by 3 and the other factor is multiplied by 5. What is the product?
两个数相乘的积是60，一个乘数乘3，另一个因数乘5，那么积是多少．
<gadget id="calculator">60 * 3 * 5</gadget>
<output>900</output>

<result>900</result>