A key principle of Scrum is its recognition that during product development, the customers can change their minds about what they want and need (often called requirements volatility), and that unpredicted challenges cannot be easily addressed in a traditional predictive or planned manner.
Generally, it will take a minimum of two gallons of paint to cover a room. At the highest end, paint will cost anywhere between $30 and $60 per gallon and come in three different finishes: flat, semi-gloss or high-gloss. Flat finishes are the least shiny and are best suited for areas requiring frequent cleaning.
The amount of paint required is therefore: Surface area: 42 square metres Divided by Ã· Spreading rate: 11 square metres per litre Multiplied by x Number of coats: 2 coats Equals = 42/11 x 2 = 7.6 litres This tells us that 7.6 litres of paint is required to paint two coats onto the living room walls.he product label and data sheet tells us that it has a theoretical spreading rate of 11 square metres per litre. (You can also get spreading rate information from the Resene website (check out the Product Data Sheet section).