7 cows produce 630 kilograms of milk in 5 days. According to this calculation, how many kilograms of milk can 15 cows produce in 8 days?
7头奶牛5天产牛奶630千克，照这样计算，15头奶牛8天可以产牛奶多少千克．
<gadget id="calculator">630 / 7 / 5</gadget>
<output>18</output>

<gadget id="calculator">18 * 8 * 15</gadget>
<output>2_160</output>

<result>2_160</result>