How much Karmex needs to be added to refill a 2000-gallon spray tank with 300 gallons of spray mix left?

• A. 150 pounds
• B. 408 pounds
• C. 600 pounds
• D. 250 pounds

Answer: (B)

To determine how much Karmex needs to be added to refill a 2000-gallon spray tank with only 300 gallons of spray mix left, you first calculate the amount needed to fill the tank back to its total capacity.

The total capacity of the spray tank is 2000 gallons, and with 300 gallons remaining, you need to add enough to achieve this capacity. Therefore, you have:

2000 gallons (total capacity) - 300 gallons (remaining) = 1700 gallons needed to refill the tank.

Next, to find out how much Karmex is necessary for the 1700 gallons of spray mix, you need to know the recommended application rate for Karmex. Depending on the specific label recommendations, let's say the application rate is typically given in pounds per gallon of spray mix. If we use the example rate, for instance, let's assume 0.24 pounds of Karmex per gallon.

At this rate, the calculation becomes:

1700 gallons × 0.24 pounds/gallon = 408 pounds of Karmex needed.

This calculation aligns with the choice that indicates 408 pounds, which is the amount required to reach the correct concentration of Karmex throughout the entire