Answer:
[tex]\frac{4}{5}[/tex] litres total amount of rain water fell.
Step-by-step explanation:
[tex]\frac{7}{10} +\frac{1}{10}[/tex]
[tex]\frac{7+1}{10}[/tex]
[tex]\frac{8}{10}[/tex]
[tex]\frac{4}{5}[/tex]
