Shanti sweets stall was placing an order for making cardboard boxes for packing their sweets two boxes of two size of boxes are required the bigger of dimension 25 cm into 20 cm and 5 cm and the small of dimension 15 CM 12 cm and 5 cm for all the overlaps 5% of the total surface area is required extract if the cost of the cardboard is rupees 4000 CM square find the cost of cardboard required for supplying 250 boxes of each cardboard