The school holds a party, and the venue is decorated with colorful lights. According to 3 red lights and 2 yellow lights, there are already 180 red lights. How many yellow lights are needed?
学校开联欢会，用彩灯布置会场，按照3盏红灯搭配2盏黄灯，现在已经有180盏红灯，需要多少盏黄灯．
<gadget id="calculator">180 / 3</gadget>
<output>60</output>

<gadget id="calculator">60 * 2</gadget>
<output>120</output>

<result>120</result>