Business FinancesQuestion 1125 of 1605
A concrete slab is 30 ft x 40 ft x 4 inches thick. How many cubic yards of concrete are needed? (1 cubic yard = 27 cubic feet)
a.44.4 cubic yards
b.12.3 cubic yards
c.48 cubic yards
d.14.8 cubic yards
Explanation
Volume in cubic feet = 30 x 40 x (4/12) = 30 x 40 x 0.333 = 400 cubic feet. Convert to cubic yards: 400 / 27 = 14.8 cubic yards.
Practice all 1605 questions free — no signup required.
Related questions on this topic
- A framing job needs 3,200 board feet of lumber at $0.85 per board foot, plus 40 labor hours at $45/hour. What is the estimated direct cost?
- A contractor estimates a job at 120 labor hours. Actual hours worked were 150. By what percentage did labor hours exceed the estimate?
- The primary purpose of JOB COSTING is to:
- A contractor pays a mason $28/hour. With payroll burden (taxes, insurance, benefits) adding 35%, what is the fully burdened labor rate?
- A painting job covers 2,400 square feet. One gallon covers 350 sq ft. How many gallons (rounded up to full cans) are needed for two coats?
- A subcontractor bids $18,000. The general contractor adds a 12% markup on that subcontract. What is the marked-up amount billed to the owner for that scope?
Last reviewed: · editorial process
Sen Lin, PrepPass Founder · Verified against California CSLB Contractor License Law & Business Exam · How we review
Reviewed by Abraham Chen — Licensed California General Contractor (CSLB License #1101856 — verify)