Mathematics · Soil Permeability Calculations
Soil at a site consists of two layers. The top layer has permeability 'k' units and the bottom layer has permeability '5k' units. If the thickness of both layers is equal, what is the average equivalent permeability in the vertical direction?
- 165 k units
- 256 k units
- 353 k units✓
- 43k units
Correct answer
53 k units
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