brazil-enem 2012 Q173

brazil-enem · Other · enem__day2 Not Maths
There are, due to the growing demand for water conservation, equipment and utilities such as, for example, ecological toilets, which use 6 liters of water per flush instead of the 15 liters used by non-ecological toilets, according to data from the Brazilian Association of Technical Standards (ABNT).
What will be the daily water savings obtained by replacing a non-ecological toilet, which uses about 60 liters per day with flushing, with an ecological toilet?
(A) 24 liters
(B) 36 liters
(C) 40 liters
(D) 42 liters
(E) 50 liters
There are, due to the growing demand for water conservation, equipment and utilities such as, for example, ecological toilets, which use 6 liters of water per flush instead of the 15 liters used by non-ecological toilets, according to data from the Brazilian Association of Technical Standards (ABNT).

What will be the daily water savings obtained by replacing a non-ecological toilet, which uses about 60 liters per day with flushing, with an ecological toilet?\\
(A) 24 liters\\
(B) 36 liters\\
(C) 40 liters\\
(D) 42 liters\\
(E) 50 liters