There are 200 tourists going to visit Suzhou gardens, and there are 4 cars in total. Each bus can accommodate 60 people, and each minibus can accommodate 40 people. How many buses are there? (column equation solution)
有200位游客去苏州园林游览，共有4辆车．大巴车每车坐60人，中巴车每车坐40人，有多少辆大巴车？(列方程解答)
<gadget id="calculator">40 * 4</gadget>
<output>160</output>

<gadget id="calculator">200 - 160</gadget>
<output>40</output>

<gadget id="calculator">60 - 40</gadget>
<output>20</output>

<gadget id="calculator">40 / 20</gadget>
<output>2</output>

<result>2</result>