Li Ming's home is 60 kilometers away from the county seat. In the past, it took 4 hours to reach the county seat by bicycle. Now by car, an average of 90 kilometers per hour. How many times faster is the car than the bicycle?
李明家距离县城60千米．以前骑自行车，需要4小时才能到达县城．现在乘汽车，平均每小时行90千米．汽车的速度是自行车的多少倍？
<gadget id="calculator">60 / 4</gadget>
<output>15</output>

<gadget id="calculator">90 / 15</gadget>
<output>6</output>

<result>6</result>