20 yuan per 4 bottles of beverages, and there are 49 people in Class 3. If each person drinks a bottle, how much will it cost in total?
每4瓶饮料20元，三1班有49人，如果每人喝一瓶，一共需要多少钱？
<gadget id="calculator">20 / 4</gadget>
<output>5</output>

<gadget id="calculator">5 * 49</gadget>
<output>245</output>

<result>245</result>