If you have 2 gallons of oil, how many pounds does it weigh?

If you have 2 gallons of oil, how many pounds does it weigh?

• A. 15 lbs
• B. 14 lbs
• C. 16 lbs
• D. 12 lbs

Answer: (A)

Weight comes from density: you convert volume to weight by multiplying how much space the liquid takes up by how heavy that space is per unit of volume. For oil, a common practical density is about 7.5 pounds per gallon. So two gallons weigh roughly 2 × 7.5 = 15 pounds. If you use a more precise density (around 7.69 pounds per gallon), you’d get about 15.4 pounds for two gallons, which still rounds to 15 pounds in typical problems.

Weight comes from density: you convert volume to weight by multiplying how much space the liquid takes up by how heavy that space is per unit of volume. For oil, a common practical density is about 7.5 pounds per gallon. So two gallons weigh roughly 2 × 7.5 = 15 pounds. If you use a more precise density (around 7.69 pounds per gallon), you’d get about 15.4 pounds for two gallons, which still rounds to 15 pounds in typical problems.