What is the formula to determine how many acres can be treated per spray tank?

What is the formula to determine how many acres can be treated per spray tank?

• A. Gallons per acre divided by tank size in gallons
• B. Tank size in gallons times GPA
• C. Tank size in gallons / gallons per acre (GPA)
• D. Tank size in gallons plus GPA

Answer: (C)

To figure out how many acres a spray tank can cover, you divide the tank’s capacity in gallons by the application rate in gallons per acre. The idea is that the total volume you have (gallons) will be spread over a certain number of acres at a given amount per acre, so the units cancel to give acres. For example, a 100-gallon tank applied at 20 gallons per acre would cover 100 ÷ 20 = 5 acres. Multiplying tank size by gallons per acre or adding the two numbers doesn’t produce acres, and reversing the division would give a meaningless result for area. So the correct approach is tank size divided by gallons per acre.

To figure out how many acres a spray tank can cover, you divide the tank’s capacity in gallons by the application rate in gallons per acre. The idea is that the total volume you have (gallons) will be spread over a certain number of acres at a given amount per acre, so the units cancel to give acres.

For example, a 100-gallon tank applied at 20 gallons per acre would cover 100 ÷ 20 = 5 acres.

Multiplying tank size by gallons per acre or adding the two numbers doesn’t produce acres, and reversing the division would give a meaningless result for area. So the correct approach is tank size divided by gallons per acre.