The road repair team built a road of 1,200 kilometers. On the first day, the whole road was repaired (1/4), and on the second day, it was repaired on the first day (1/10). How many kilometers were repaired on the second day?
修路队修一条路1200千米，第一天修全程的(1/4)，第二天修的是第一天的(1/10)，第二天修了多少千米？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1_200 * (1/4) * (1/10)</gadget>
<output>30</output>

<result>30</result>