Uncle Li drove from place A to place B, starting at 7:00 in the morning. If the speed of the car was 80 km/h, he would arrive on time at noon. Driving 90 kilometers per hour, please do the math for Uncle Li, what speed should you keep driving to arrive on time?
李叔叔从甲地开车去乙地，早上7：00出发，如果车速为80千米/时，那么中午就能准时到达，行驶了3小时后，李叔叔算了一下，这3小时内平均每小时行驶90千米，请你替李叔叔算一算，接下来保持什么速度行驶就能按时到达？
<gadget id="calculator">12 - 7</gadget>
<output>5</output>

<gadget id="calculator">80 * 5</gadget>
<output>400</output>

<gadget id="calculator">90 * 3</gadget>
<output>270</output>

<gadget id="calculator">400 - 270</gadget>
<output>130</output>

<gadget id="calculator">12 - 7 - 3</gadget>
<output>2</output>

<gadget id="calculator">130 / 2</gadget>
<output>65</output>

<result>65</result>