Mock Paper 14 Aug 2025 23:39

\begin{aligned} &\text{Given: pressure} = 4.0 \; \text{N/cm}^2, \; \text{force} = 576 \; \text{N}. \\ &\text{Area of one face} = \frac{576}{4.0} = 144 \; \text{cm}^2. \\ &\text{Since the base is square: side length} = \sqrt{144} = 12 \; \text{cm}. \\ &\text{Surface area of cube} = 6 \times (12)^2 = 6 \times 144 = 864 \; \text{cm}^2. \\ &\text{Therefore: } 864 < 1000, \; \text{so it is less than } 1000 \; \text{cm}^2. \end{aligned}