Each barrel of soy sauce is 2 liters, and the cafeteria bought 5 barrels of such soy sauce for 50 yuan. How much is the average soy sauce per liter?
每桶酱油2升，食堂花50元钱买了5桶这样的酱油．平均每升酱油多少元？
<gadget id="calculator">2 * 5</gadget>
<output>10</output>

<gadget id="calculator">50 / 10</gadget>
<output>5</output>

<result>5</result>