A truck is moving at a speed of 800 meters per minute. At this time, a car is moving at a speed of 900 meters per minute 1000 meters behind the truck. How many minutes can the car catch up with the truck at this speed?
一辆卡车以每分800米的速度在行使，这时一辆轿车在卡车后面1000米处正以每分钟900米的速度行使，照这样的速度轿车经过多少分能追上卡车．
<gadget id="calculator">900 - 800</gadget>
<output>100</output>

<gadget id="calculator">1_000 / 100</gadget>
<output>10</output>

<result>10</result>