How many kilograms

Question

A floor must be painted twice: once, using a primer that requires 125 grams of paint per square meter of floor, and a second time with a paint that requires 75 grams of paint per square meter of floor. How many kilograms of paint and primer together are required to paint a 5 meter by 6 meter rectangular floor? 

Answer 1

First convert grams to kilograms.

 

Primer requires 0.125 kilograms per square meter.

Paint requires 0.075 kilograms per square meter.

 

 

If we add the weight per square meter, we get a total weight per square meter of

 

(0.125 + 0.075) kilograms per square meter = 0.2 kilograms per square meter

 

 

The area of the floor is

 

6 meters x 5 meters = 30 square meters

 

 

Multiply this by 0.2 to get your total weight in kilograms required.