I think the question ur asking is what’s the volume of water?? If so then the volume of water is 1L
First find the factors of 20
1 & 20
2 & 10
4 & 5
-1 & -20
-2 & -10
-4 & -5
Now find the pairs that have a difference of 1
-4 & -5
4 & 5
Hello! I'm Arianna and i would love to help! Here is the answer 8 mosaics Hope I Helped! And Have a Great day <3