10 days to eat 50 kg of grass, 155 kg, enough to eat for how many days?
10天吃草50千克，有155千克，够吃几天？
<gadget id="calculator">50 / 10</gadget>
<output>5</output>

<gadget id="calculator">155 / 5</gadget>
<output>31</output>

<result>31</result>