The length and breadth of the rectangular courtyard are 124 \(m\) and 46 \(m\). Find the cost of levelling it at the rate of \(₹\)3 per \(m²\). Find the distance covered by a boy if he makes 5 rounds around the courtyard.

The perimeter of the courtyard is \(m\).
Area of the courtyard is \(m²\).
Distance covered by the boy in taking 5 rounds is \(m\).
The total cost of levelling is \(₹\).