So, we can find this by finding the UNIT RATE. The unit rate is how many liters per hour. So we lose 2.5 liters per 24 hours. So we just need to divide the number of liters of water lost by the amount of time.
When we do this we get
[tex]2.5\div24=.1041666[/tex]
Now that's how much per hour, so we need to multiply this number by two in order to fine the amount of water.
[tex].1041666\times2=.20833[/tex]
When it is rounded, we get .21
The answer is B
