The school cafeteria originally had 225kg of rice, and ate 105kg in 7 days. According to this calculation, how many days can the remaining rice be eaten?
学校食堂原有大米225kg，7天吃掉105kg．照这样计算，余下的大米还可以吃多少天？
<gadget id="calculator">225 - 105</gadget>
<output>120</output>

<gadget id="calculator">105 / 7</gadget>
<output>15</output>

<gadget id="calculator">120 / 15</gadget>
<output>8</output>

<result>8</result>