A and B both sell the same mineral water, A sells 30 barrels, B sells 40 barrels, A makes a profit of 60 yuan, how much does B make?
甲、乙两个推销同样的矿泉水，甲推销出30桶，乙推销出40桶，甲获利60元，乙获利多少元？
<gadget id="calculator">60 / 30</gadget>
<output>2</output>

<gadget id="calculator">2 * 40</gadget>
<output>80</output>

<result>80</result>