I made some hot chocolate by mixing 4 cups of milk with 6 tablespoons of cocoa how many tablespoons of cocoa per cup of milk is that and how many cups of milk is that per tablespoon of cocoa there is

Several paint mixtures are made by mixing blue paint and white paint. paint colors blue paint white paint mixture a 5 cups 12 cups mixture b 6 cups 6 cups mixture c 4 cups 12 cups mixture d 5 cups 6 cups which mixture has the highest ratio of blue paint to white paint