A loom weaves 120 meters of cloth in 6 hours. At this speed, weaving for another 3 hours, how many meters can we weave in total? (Solve with ratio)
一台织布机6小时织布120米，照这样的速度，再织3小时，一共可织布多少米？(用比例解)
<gadget id="calculator">120 / 6</gadget>
<output>20</output>

<gadget id="calculator">20 * 3</gadget>
<output>60</output>

<gadget id="calculator">20 * 6</gadget>
<output>120</output>

<gadget id="calculator">60 + 120</gadget>
<output>180</output>

<result>180</result>