The fruit shop brought 6 baskets of apples, sold 120 kilograms, and left 60 kilograms, how many kilograms of apples per basket on average?
水果店运来6筐苹果，卖了120千克，还剩60千克，平均每筐苹果多少千克？
<gadget id="calculator">120 + 60</gadget>
<output>180</output>

<gadget id="calculator">180 / 6</gadget>
<output>30</output>

<result>30</result>