Answer
40 lb
Work Step by Step
Given airplane sprayer hold 60 gal, $\frac{3}{4}$ gal of water and $\frac{1}{2}$ lb of pesticide is required per acre
therefore we need to calculate pesticide powder needed per tankful
60 $\div$ $\frac{3}{4}$ gal
= 60 x $\frac{4}{3}$
=80 acre
Pesticide required = 80 x $\frac{1}{2}$ lb
= 40 lb
