Answer: The possible number of minutes is 5 minutes.
Step-by-step explanation: First, we should subtract: 46 - 16, since we already have 16 liters and need to get up to 46 liters. 46 - 16 gives us 30. 30 means that it is the liters needed to be filled.
Step-by-step explanation 2: Next, we know that 6 liters is filled every minute. So, basically just do 30 divided by 6, which gives us 5. 5 means the minutes.
Sooo, The possible number of minutes to fill the tank by 6 liters would be 5 minutes
I tried to explain it the best way I could. Hope it isn't confusing.