WAEC Computer Studies 2024 Paper

Concept:QBasic uses the asterisk $*$ for multiplication and the forward slash $/$ for division.Explanation:The mathematical expression is read as $p$ plus $q$ multiplied by the fraction $\frac{r}{s}$.In ordinary notation, it can be written as $x = p + q \times \frac{r}{s}$.QBasic does not recognise $\times$ or $\div$ as operator symbols.So multiplication is replaced with $*$, and division is replaced with $/$.The parentheses must be kept to show that $\frac{r}{s}$ is evaluated first.Thus, the correct QBasic statement is $X = P + Q * (R / S)$.Option A and Option D wrongly introduce an extra equals sign in the expression.Option C uses a multiplication cross and a backslash, which are not valid QBasic operators.Therefore, only option B matches the required programming syntax.Answer:B: $X = P + Q * (R / S)$