Gce Model Questions Vol1 2017 Agricultural Science Question 2

A farmer harvests 10 000 kg of maize with a moisture content of 25 % (wet basis). The desired storage moisture is 13 % (wet basis). Drying removes water at a cost of ₦0.05 per kilogram of water removed. After drying, the grain is stored in a silo that loses 2 % of the dry weight each month because of pests. The farmer plans to store the grain for 4 months before sale. The market price of dry maize is ₦0.30 per kilogram. If the farmer sells the grain immediately at harvest moisture, the price is reduced proportionally to the dry‑matter fraction of the grain. Determine the net revenue for (i) drying to 13 % moisture and storing for 4 months, and (ii) selling immediately without drying. Which option gives the higher net revenue?