WAEC Agriculture 2023 Paper

Concept:Seed rate is the amount of seed needed per unit area, so the quantity required is obtained by multiplying the seed rate by the farmland area in hectares.Explanation:1 hectare equals $10,000$ square metres.First, calculate the area of the farmland in square metres:$100 \text{ m} \times 500 \text{ m} = 50,000 \text{ m}^2$Convert this area into hectares:$\frac{50,000}{10,000} = 5$ hectaresGiven the seed rate is $25$ kg per hectare, multiply by the area in hectares:$25 \times 5 = 125$ kgThus, the farmland requires $125$ kg of cowpea seeds.Answer:$125$ kg (Option A)