There are 20 stone benches beside the road around the lake in the park, and the distance between adjacent stone benches is 36 meters. Now replace the stone benches with wooden chairs, so that the distance between adjacent wooden chairs is 24 meters, how many wooden chairs should be prepared in total?
公园的环湖小路边有石凳20张，相邻石凳间隔36米．现在把石凳改换成木椅，使相邻木椅之间间隔24米，一共要准备多少张木椅？
<gadget id="calculator">36 / 24</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">20 * (3/2)</gadget>
<output>30</output>

<result>30</result>