What is the cost painting the two adjacent walls of a hall at Rs. 5 per m2 which has no windows or doors? I. The area of the hall is 24 sq. m. II. The breadth, length and height of the hall are in the ratio of 4: 6: 5 respectively. III. Area of one wall is 30 sq. m.

1. A Option A: I only
2. B Option B: II only
3. C Option C: III only
4. D Option D: Either I or III
5. E Option E: All I, II and III are required.

How we write and check questions