5A soil scientist analyzing a 120-acre farm finds that 40% of the land is clay-rich soil, 35% is loamy soil, and the rest is sandy soil. If she collects two samples per acre from clay and loamy soils, but only one sample per acre from sandy soil due to lower variability, how many total soil samples does she collect?

Sat, 09 May 2026 00:50:30 +0000

5A Soil Scientist Analyzes 120-Acre Farm: Precision Sampling Reveals Key Soil Distribution A recent comprehensive soil analysis conducted by a leading 5A soil scientist reveals critical insights into the distribution of soil types across a 120-acre farm—information vital for precision agriculture and sustainable land management. The study found that the farmland consists of: - 40% clay-rich soil
- 35% loamy soil
- 25% sandy soil (leftover after summing the first two percentages) To capture representative data while optimizing fieldwork efficiency, the scientist employed a tailored sampling strategy:
- Two soil samples per acre from clay-rich areas
- Two samples per acre from loamy soils
- One sample per acre from sandy soils, due to lower spatial variability