Xiaoqiang has 480 yuan, and he plans to give his mother a variable speed bicycle (priced at 720 yuan) during the Spring Festival. For the shortfall, he plans to save by eating less snacks in the future, saving 30 yuan a month, and how many months will it take to buy this transmission car?
小强有480元钱，他准备春节时送给妈妈一辆变速自行车(售价720元)．不足部分他打算以后少吃零食来积攒，每月节约30元钱，问几个月才能买下这辆变速车？
<gadget id="calculator">720 - 480</gadget>
<output>240</output>

<gadget id="calculator">240 / 30</gadget>
<output>8</output>

<result>8</result>