The community garden is a rectangle with a length of 60m and a width of 40m. Now it is necessary to place trees around the garden, at all four corners, and every two adjacent trees are separated by 5m. How many trees are there in total?
小区花园是一个长60m，宽40m的长方形．现在要在花园四周载树，四个角上都要载，每相邻两棵间隔5m．一共要载多少棵树？
<gadget id="calculator">60 + 40</gadget>
<output>100</output>

<gadget id="calculator">100 * 2</gadget>
<output>200</output>

<gadget id="calculator">200 / 5</gadget>
<output>40</output>

<result>40</result>