A car drives from place A to place B, travels 60 kilometers per hour, and can get there in 3 hours. When returning, if the speed is increased by 20%, how many hours can it return to place A?
一辆汽车从甲地开往乙地，每小时行60千米，3小时可到达，返回时，如果速度提高20%，多少小时可以返回甲地？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">60 * (6/5)</gadget>
<output>72</output>

<gadget id="calculator">3 / 72</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">60 * (1/24)</gadget>
<output>5/2 = around 2.5</output>

<result>5/2 = around 2.5</result>