The cafeteria bought a batch of rice. If you eat 24 kilograms a day, it will last for 10 days. If you eat 20 kilograms a day, how many days can the rice last?
食堂买来一批大米，如果每天吃24千克，够吃10天，如果每天吃20千克，这些大米能吃多少天？
<gadget id="calculator">10 / 20</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">24 * (1/2)</gadget>
<output>12</output>

<result>12</result>