How many samples of surfacing 3000 sq. ft.?

• A. 3
• B. 4
• C. 6
• D. 5

Answer: (D)

The number of samples for surfacing is based on a standard sampling rate by area. For surfacing, you typically take one sample for every 600 square feet of area. Divide 3000 square feet by 600 square feet per sample, which equals 5 samples. Since this comes out evenly, five samples will adequately represent the entire area. If there were any leftover smaller area, you would round up to ensure coverage, but here 3000 sq ft fits perfectly into five equal blocks. This approach helps ensure the test results reflect variations across the whole surface rather than just a portion.