car travels 40 kilometers per hour, a car travels 50 kilometers per hour, and the cars drive from two places 300 kilometers apart at the same time. How long will the two cars meet? (solution by equation)
一辆汽车每小时行40千米，一辆轿车每小时行50千米，辆车同时从相距300千米的两地相对开出，几小时两车相遇？(用方程解)
<gadget id="calculator">40 + 50</gadget>
<output>90</output>

<gadget id="calculator">300 / 90</gadget>
<output>10/3 = around 3.333333</output>

<result>10/3 = around 3.333333</result>