There are 900 kilograms of stones in a construction site, and it takes 3 vehicles to transport them twice. How many kilograms per vehicle is transported on average?
某工地有900千克石头，用3辆汽车运2次才能运完．平均每辆汽车每次运多少千克？
<gadget id="calculator">900 / 2 / 3</gadget>
<output>150</output>

<result>150</result>