WAEC Agriculture 2021 Paper

Concept:The percentage change in quantity supplied compares the change in quantity with the original quantity supplied.Explanation:Use the formula: $$\text{Percentage change} = \frac{Q_2 - Q_1}{Q_1} \times 100\%$$Here, $Q_1$ is the original quantity supplied and $Q_2$ is the new quantity supplied.To calculate the value, both $Q_1$ and $Q_2$ must be taken from the supply schedule table for maize.Without the table values, these quantities cannot be identified.Substitution into the formula is therefore impossible.None of the given options can be confirmed or selected.The correct result depends entirely on the missing data.Answer:Cannot be determined from the information given.