The store shipped 350 kilograms of pears into Sydney, and after selling 80 kilograms, the rest is exactly three times the weight of apples. How many kilograms are apples?
商店运进雪梨350千克，卖出80千克后，剩下的正好是苹果重量的3倍，苹果有多少千克？
<gadget id="calculator">350 - 80</gadget>
<output>270</output>

<gadget id="calculator">270 / 3</gadget>
<output>90</output>

<result>90</result>