A car drives 48 kilometers per hour from place A to place B, and it can be reached in 5 hours; if it takes 4 hours to arrive, how many kilometers per hour should the speed be increased?
一辆汽车从甲地开往乙地，每小时行驶48千米，5小时可以到达；如果要4小时到达，那么车速应提高到每小时多少千米？
<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">48 * (5/4)</gadget>
<output>60</output>

<result>60</result>