A balloon-type apparatus is used to determine an in-place unit weight for a soil (field density test). The volume of the test hole determined by reading the water level graduations on the apparatus cylinder before and after digging the test hole is 0.025 ft3. The wet weight of soil obtained from the test hole is 3.10 lb. The water content is determined to be 14 percent by drying a small sample on a field stove.

(a) Determine the in-place dry unit weight of the tested soil.

(b) Determine the percentage of compaction for the test result from part a if the soil is part of a compacted earth fill whose maximum unit weight (from laboratory compaction tests) is 118 pcf.