Xiaoning and Xiaoqing set off from the teaching building to the experimental building together. Xiaoning walks 90 meters per minute and arrives in 6 minutes. Xiaoqing moves forward at a speed of 60 meters per minute. How long does it take to get there?
小宁和小青从教学楼一起出发去试验楼，小宁每分钟走90米，6分钟后到达，小青以60米/分的速度前进，需要几分钟才能走到？
<gadget id="calculator">6 / 60</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">90 * (1/10)</gadget>
<output>9</output>

<result>9</result>