The walls and ceiling of a room are to be plastered. The length, breadth and height of the room are 4.5m, 3m and 350cm, respectively. Find the cost of plastering at the rate of Rs. 8 per square metre.

Explanation

To solve the problem of finding the cost of plastering the walls and ceiling of a room, we will follow these steps:

### Step 1: Convert all measurements to the same unit
The given dimensions of the room are:
- Length = 4.5 m
- Breadth = 3 m
- Height = 350 cm

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