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The in-situ dry density of a sand is 1.72 Mg/m. The maximum and minimum dry densities, determined by standard laboratory tests, are 1.81 and

The in-situ dry density of a sand is 1.72 Mg/m. The maximum and minimum dry densities, determined by standard laboratory tests, are 1.81 and 1.54 Mg/m, respectively. Determine the density index of the sand.

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