The distance between A and B is 200 kilometers. A bus departs from A and arrives at B in 2 hours. The speed of the bus is (4/5) that of a car. The bus and the car drive from A to B at the same time. Come out, meet in a few hours?
甲乙两地相距200千米，一辆大客车从甲地出发2小时后到达乙地，大客车的速度是小汽车的(4/5)，大客车和小汽车分别从甲乙两地同时相向开出，几小时后相遇？
<gadget id="calculator">200 / 2</gadget>
<output>100</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">100 / (4/5)</gadget>
<output>125</output>

<gadget id="calculator">100 + 125</gadget>
<output>225</output>

<gadget id="calculator">200 / 225</gadget>
<output>8/9 = around 0.888889</output>

<result>8/9 = around 0.888889</result>