The floor of a rectangular hall has a perimeter `250 m\ dot` If the cost of painting the four walls at the rate of `10\ p e r\ m^2` is `R s .15000.` Find the height of the hall.

Explanation

To find the height of the hall, we can follow these steps:

### Step 1: Understand the given information
- The perimeter of the rectangular hall is given as \( P = 250 \, m \).
- The cost of painting the four walls is \( Rs. 15000 \) at the rate of \( Rs. 10 \) per \( m^2 \).

### Step 2: Calculate the area of the walls that are painted
The cost of painting can be calculated using the formula:
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