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Building Supplies Quarry Sand Business For

Building Supplies Quarry Sand Business For

Since both contain sand and gravel it is assumed that the material is consistent between the two pits. Two other test pits C and D are dug. The new pits are 300 feet apart. If all the test pits show sand and gravel it is assumed that the entire area 300 feet by 300 feet contains sand and gravel.

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