Five boxes of salad oil from the non-staple food store weigh 150 kilograms in total, and each box contains 6 barrels of oil. How many kilograms does each barrel weigh on average?
副食店运来5箱色拉油共重150千克，每箱里装6桶油，平均每桶重多少千克？
<gadget id="calculator">150 / 5 / 6</gadget>
<output>5</output>

<result>5</result>