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?

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

Step-by-step 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

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.

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step-by-step explanation: