Xiao Ming went to school from home, walking 150 meters per minute, 10 minutes after he set off, his father found that he had left the lock at home, and hurried to chase Xiao Ming, the bicycle was 750 meters per minute, 300 meters away from the school, Dad caught up with Xiao Ming, It took them 1 minute to talk, how many minutes did it take Xiao Ming to go from home to school?
小明由家去上学，每分钟走150米，他出发10分钟后，爸爸发现他把锁落在家里，急忙去追小明，自行车每分钟750米，在离学校300米处，爸爸追上小明，他们谈话用了1分钟，小明从家到学校共用了多少分钟？
<gadget id="calculator">750 - 150</gadget>
<output>600</output>

<gadget id="calculator">10 / 600</gadget>
<output>1/60 = around 0.016667</output>

<gadget id="calculator">150 * (1/60)</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">(5/2) * 750</gadget>
<output>1_875</output>

<gadget id="calculator">1_875 + 300</gadget>
<output>2_175</output>

<gadget id="calculator">2_175 / 150</gadget>
<output>29/2 = around 14.5</output>

<gadget id="calculator">(29/2) + 1</gadget>
<output>31/2 = around 15.5</output>

<result>31/2 = around 15.5</result>