If the ratio of milk and water in a 40-liter mixture is 4:1, how much water should be added to make the ratio 2:3?

प्रारंभिक: दूध = 32L, पानी = 8L। मान लीजिए x पानी मिलाया गया। 32 / (8+x) = 2/3 => 96 = 16 + 2x => 2x = 80 => x = 40L।