There is a batch of fruits that can be shipped with 80 large baskets and 120 small baskets. It is known that each large basket is shipped 20kg more than each small basket, so how many kilograms are there in this batch of fruits?
有一批水果，用大筐80只可装运完，用小筐120只也可装运完．已知每只大筐比每只小筐多装运20千克，那么这批水果有多少千克？
<gadget id="calculator">80 * 20</gadget>
<output>1_600</output>

<gadget id="calculator">120 - 80</gadget>
<output>40</output>

<gadget id="calculator">1_600 / 40</gadget>
<output>40</output>

<gadget id="calculator">120 * 40</gadget>
<output>4_800</output>

<result>4_800</result>