Aftab's monthly salary is Rs. 225000 . He spends $$ \frac { 1 } { 5 } $$ of his salary on rent. Of the remain amount. he spends $$ \frac { 1 } { 4 } $$ on the education of his children and $$ \frac { 1 } { 5 } $$ on food. Find (i) After monthly expenditure and (ii) his monthly savings.