From A to B, a car travels 40 kilometers per hour and reaches B in 3 hours. If you travel 48 kilometers per hour, how many hours can you reach B? (Solve with ratio)
从甲地到乙地，一辆汽车每小时行40千米，3小时到达乙地．如果每小时行48千米，几小时可到达乙地？(用比例解)
<gadget id="calculator">40 * 3</gadget>
<output>120</output>

<gadget id="calculator">120 / 48</gadget>
<output>5/2 = around 2.5</output>

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