Xiaohua rides a bicycle from home to grandma's house, traveling 200 meters per minute, and can get there in 9 minutes. Because of urgent matters, she needs to be 3 minutes ahead of time. What should be the speed of the car?
小华骑车从家到姥姥家，每分钟行200米，9分钟能到，由于有急事，要提前3分钟，车速应该是多少．
<gadget id="calculator">9 - 3</gadget>
<output>6</output>

<gadget id="calculator">9 / 6</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">200 * (3/2)</gadget>
<output>300</output>

<result>300</result>