Question

2 sizes of box were required to pack sweets. the bigger of dimension 25 cm × 20 cm × 5 cm and the smaller of dimension 50 cm × 12 centimetre × 5 cm. For all the overlaps, 5% of the total surface area is required extra . If the cost of cardboard is rupees 4 for 1000 cm sq. ,
find the cost of cardboard required for supply 250 boxes of each kind

Answer 1

answer goes like this☝️