The store sells a batch of air conditioners. If 18 units are installed for consumers every day, it will take 5 days to complete the installation. In order to enable consumers to use air conditioners as soon as possible, the store is going to install them within 3 days. How many units must be installed every day?
商店售出一批空调，如果每天为消费者安装18台，需5天装完．为使消费者早日用上空调，商店准备在3天内装完，每天必须安装多少台？
<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">18 * (5/3)</gadget>
<output>30</output>

<result>30</result>