Jialong Supermarket launched a promotional activity for buying mineral water, buy 5 get 1 free, there are 36 students in the Xiaoxiao class, each of them has a bottle of water, how many bottles do they need to buy?
佳龙超市开展买矿泉水优惠活动，买5送1，笑笑班有36名同学，每人一瓶水，需要买多少瓶．
<gadget id="calculator">5 + 1</gadget>
<output>6</output>

<gadget id="calculator">36 / 6</gadget>
<output>6</output>

<gadget id="calculator">6 * 5</gadget>
<output>30</output>

<result>30</result>