40 carts of apples are shipped from the fruit warehouse. Each cart contains 30 baskets. Each basket of apples weighs 25 kilograms. How many kilograms of apples are shipped in total?
果品仓库运来40车苹果，每车装30筐，每筐苹果重25千克，共运来多少千克苹果？
<gadget id="calculator">30 * 40</gadget>
<output>1_200</output>

<gadget id="calculator">25 * 1_200</gadget>
<output>30_000</output>

<result>30_000</result>