8. Four mark example problems

The floor of an office building consists of \(200\) rhombus shaped tiles and each of its length of the diagonals are \(40 \ cm\) and \(25 \ cm\). Find the total cost of polishing the floor at \(₹45\) per \(sq. \ m\).

 

Answer:

 

Total cost of polishing the floor \(=₹\)