Question Number 12605 by tawa last updated on 26/Apr/17
Answered by ajfour last updated on 26/Apr/17
$${let}\:{painter}\:{worked}\:{for}\:{N}\:{days}\:. \\ $$$$\mathrm{40}{N}+\mathrm{10}\left({N}−\mathrm{10}\right)=\mathrm{2000} \\ $$$$\mathrm{50}{N}=\mathrm{2100}\:\:\:\Rightarrow\:\:{N}=\mathrm{42} \\ $$$${assistant}\:{worked}\:{N}−\mathrm{10}\:=\mathrm{32}\:{days} \\ $$$${he}\:{received}\:=#\mathrm{320}\:. \\ $$
Commented by tawa last updated on 26/Apr/17
$$\mathrm{God}\:\mathrm{bless}\:\mathrm{you}\:\mathrm{sir}. \\ $$