Question

a floral design on the floor of a building consists of 2800 tiles.Each tile is in the shape of a parallelogram of altitude 3cm and base 5cm.find the cost of polishing the design at the rate of 50 paise per sq.cm?

Answer 1

take the surface area of 1 tile and multiple it by the number of required no. of tile say as 2800 tiles and then the product that you get should be mutiplied with the rate.
hope this helps.