Agronomy Degree Practice Exam

To determine how many 50-lb bags of wheat are needed to plant a 90-acre field at a rate of 1.5 bushels per acre, you first need to calculate the total amount of wheat required in bushels for the entire field.

Start by multiplying the number of acres (90 acres) by the seeding rate (1.5 bushels per acre):

90 acres × 1.5 bushels/acre = 135 bushels.

Next, convert this amount into pounds, since the bags of wheat are measured in pounds. Knowing that there are 60 pounds in a bushel of wheat:

135 bushels × 60 lbs/bushel = 8100 pounds of wheat needed.

Now, to find out how many 50-lb bags are required, divide the total pounds needed by the weight of each bag:

8100 pounds ÷ 50 lbs/bag = 162 bags.

This calculation shows that the correct answer is 162 bags. The process involves multiplying the area by the seeding rate to find the total bushels required and then converting that figure into pounds, which is ultimately divided by the bag size to get the final count of bags needed for planting