There are tigers and lions in a zoo, the number of tigers is twice that of lions, each tiger eats 4.5 kg of meat per day, and each lion eats 3.5 kg of meat per day, then how many kg of meat do the tigers and lions in this zoo eat on average every day?
某动物园有老虎和狮子，老虎的数量是狮子的2倍，每只老虎每天吃肉4.5千克，每只狮子每天吃肉3.5千克，那么该动物园的虎、狮子平均每天吃肉多少千克．
<gadget id="calculator">25 / 6</gadget>
<output>25/6 = around 4.166667</output>

<result>25/6 = around 4.166667</result>