Xiao Ming goes to school by bicycle. If he travels 200 meters per minute, he can reach the school in 30 minutes. If he travels 300 meters per minute, how many minutes will he reach the school?
小明骑车去学校，如果每分钟行200米，30分钟可到达，如果每分钟行300米，几分钟到达？
<gadget id="calculator">30 / 300</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">200 * (1/10)</gadget>
<output>20</output>

<result>20</result>