For a bag of rice, the ratio of the kilograms eaten on the first day to the total kilograms of rice is 2:5. After eating 16 kilograms on the second day, there are still 14 kilograms left. How many kilograms is this bag of rice originally?
一袋大米，第一天吃的千克数与大米总千克数的比是2：5，第二天吃了16千克，还剩下14千克．这袋大米原有多少千克？
<gadget id="calculator">16 + 14</gadget>
<output>30</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">30 / (3/5)</gadget>
<output>50</output>

<result>50</result>