## Elementary Technical Mathematics

given a $\frac{1}{20}$ acre plot produces 448 lb shelled corn Therefore we need to find the yield in bushels per acre first convert the weight into bu = 448 lb $\div$ 56 = 8 bu Now the yield = 8 bu $\div$ $\frac{1}{20}$ 8 bu x 20 = 160 bu/acre