The fruit store shipped 2,000 kilograms of fruit and sold 1,520 kilograms. The remaining 4 days were sold out. How many kilograms are sold per day on average?
水果店运来2000千克的水果，已经卖出1520千克，剩下的4天卖完，平均每天卖多少千克？
<gadget id="calculator">2_000 - 1_520</gadget>
<output>480</output>

<gadget id="calculator">480 / 4</gadget>
<output>120</output>

<result>120</result>