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I don't know the density of sand so I'll extimate.

1 cubic ft of water weighs 62.4 pounds. Sand weighs about 2.2 times as much as water. so 1 cft would weigh 62.4x2.2 = 137.28 lbs. I'll round to 140

1 ton of feathers is 2000 lbs, so is 1ton of sand.

2000 / 140 = 100/7 = 14.3 cubic feet.

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12y ago

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