There is some rice in the store, each bag is 50 kg, 80 bags are sold, and there are 5 tons left. How many tons of rice did the store have?
商店有一些大米，每袋50千克，卖出80袋，还剩下5吨，这个商店原来有大米多少吨？
<gadget id="calculator">80 / 1_000</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">50 * (2/25)</gadget>
<output>4</output>

<gadget id="calculator">4 + 5</gadget>
<output>9</output>

<result>9</result>