Find out how many liters are used in the old toilet in a year;
4×27= 108 l (in a day)
365×108= 39420 liters (in a year)
Find out how many liters are used in the new toilet;
4×6=24 (in a day)
24×365=8760 l (in a year)
Find the water saved; 39420-8760
= 30660 l saved.
Hope I helped :)
It is C. a = 4/3. Just plug in the answers from a and see which is equal to 1/3 over 5.
