# Paint cans

How many paint cans do we need to paint the floor in two rooms with dimensions of 6.8m x 4.5m and 6m x3.8m? One can arefor 6m².

Result

n =  9

#### Solution:

$a = 6.8 \ m \ \\ b = 4.5 \ m \ \\ \ \\ x = 6 \ m \ \\ y = 3.8 \ m \ \\ \ \\ S = a \cdot \ b + x \cdot \ y = 6.8 \cdot \ 4.5 + 6 \cdot \ 3.8 = \dfrac{ 267 }{ 5 } = 53.4 \ m^2 \ \\ S_{ 1 } = 6 \ m^2 \ \\ \ \\ n_{ 1 } = S/S_{ 1 } = 53.4/6 = \dfrac{ 89 }{ 10 } = 8.9 \ \\ n = \lceil n_{ 1 } \rceil = \lceil 8.9 \rceil = 9$ Our examples were largely sent or created by pupils and students themselves. Therefore, we would be pleased if you could send us any errors you found, spelling mistakes, or rephasing the example. Thank you!

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