What is the cost of painting the two adjacent walls of a reactangular hall which has no windows or doors ?
I. The area of the base of hall is 124 sq. metres.
II. The breadth, length and the height of the hall are in the rato of `3:4:5.`
III. Area of one wall is 40 square meters.

Options

A. Only I
B. Only II
C. Only III
D. Data inadequate

Explanation

To find the cost of painting the two adjacent walls of a rectangular hall with no windows or doors, we need to determine the dimensions of the walls and the cost per square meter of painting. Let's analyze the information given in the statements step by step.

### Step 1: Understand the dimensions of the hall
We know that the area of the base of the hall is 124 sq. meters. This means:
\[ \text{Length} \times \text{Breadth} = 124 \, \text{sq. meters} \]

### Step 2: Use the ratio of dimensions
From statement II, we know that the breadth, length, and height of the hall are in the ratio of 3:4:5. Let's denote:
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