# Our house

Our house would paint four painters in 14 days. How long could it paint five painters? How long will it take if two other painters will come to help after 5 days?

Result

a =  11.2 d
b =  11 d

#### Solution:

$m=4 \cdot \ 14=56 \ \text{MD} \ \\ a=m / 5=56 / 5=\dfrac{ 56 }{ 5 }=11.2 \ \text{d}$

4*14 = 4*5 + (b-5)*(4+2)

6b = 66

b = 11

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