Is Jerome's brother correct? why or why not.


Jerome usually uses 8 cups of water in 3 cups a drink mix. Tomorrow there is a road race in town however and Jerome thinks he'll be able to sell a lot more of his energy drinks than usual.

Jerome's brother told him to add one more cup of water for every one cup of drink mix he added to keep the ratio of water to drink mix the same and still increase the total amount of energy drink.