Question

Geeta planned to floor her living room of size 520×300 cm with the least number of square tiles of equal areas. if the cost for the first 100 tiles are rs 64.00/tile, rs 50.00/tile for next 100 tiles and rs40.00/tile for any number of tiles after the first 200,find the total cost incurred on tiling.

Answer 1

rs (11400+40x).
here x is the number of rs 40.00's tiles