Respuesta :
Answer:
12 liter in 4 days
Step-by-step explanation:
twice as many days, twice as many liters
Answer:
6 days
Step-by-step explanation:
"another 12 liters" => 12liters + 6 liters = 18 liters
6 liters - 2days
18 liters - x
6x = 18 * 2
x = 6 days