Green apples cost 105 yuan per box of 15kg; red Fuji apples cost 96 yuan per box of 12kg. Which apple is cheaper? If you spend 80 yuan to buy 8 kg of green apples, how many kg of red Fuji can you buy?
青苹果每箱15㎏，要105元；红富士每箱12㎏，要96元．哪种苹果便宜些？如果用80元买8㎏青苹果后还可以买多少㎏红富士？
<gadget id="calculator">96 / 12</gadget>
<output>8</output>

<result>8</result>