cow can eat 8 kilograms of food a day, and an elephant can eat 6.4 times as much food as a cow. How many kilograms of food can these two animals eat a day?
一头牛每天能吃8千克食物，一头大象吃的食物是一头牛的6.4倍，两种动物一天能吃多少千克食物？
<gadget id="calculator">6.4 + 1</gadget>
<output>7.4</output>

<gadget id="calculator">8 * 7.4</gadget>
<output>59.2</output>

<result>59.2</result>