Full Steel Fresh

What total volume of steel can be used in making the drum if the gasoline-filled drum is to float in fresh wat?
Because gasoline is less dense than water, drums containing gasoline will float in water. Suppose a 230-{rm L} steel drum is completely full of gasoline.What total volume of steel can be used in making the drum if the gasoline-filled drum is to float in fresh water?
230L steel drum.
need the volume of the drum.
But calculate the weight of the gasoline, and the weight of an equivalent volume of fresh water, and the difference is the weight of the steel.
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