Question

Laurie is painting the walls of her kitchen. It took Laurie 3 hours to paint 20% of the walls in her kitchen. How many total hours did Laurie take to paint the walls of her kitchen?

Answer 1

Total time taken by Laurie to cover all kitchen walls = 15 hours

Explanation:

Given:

Time taken by Laurie to cover 20% of kitchen walls = 3 hours

Find:

Total time taken by Laurie to cover all kitchen walls

Computation:

Total time taken by Laurie to cover all kitchen walls = Time taken for 20%[100%/20%]

Total time taken by Laurie to cover all kitchen walls = 3[10/2]

Total time taken by Laurie to cover all kitchen walls = 3[5]

Total time taken by Laurie to cover all kitchen walls = 15 hours