Problema Solution

in many medical offices, a 10% bleach solution is used as disinfectant for cleaning the exam rooms. if 1/4 cup of bleach is mixed with 2 1/4 cups of water, how much bleach should be mixed with 9 cups of water in order to make a larger volume of this bleach solution?

Answer provided by our tutors

let 'x' represent the cups of bleach to be mixed with 9 cups of water


(1/4) : (2 1/4) = 9 : x


(1/4) : (9/4) = 9 : x


by solving we find:


x = 81 cups


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81 cups of bleach should be mixed with 9 cups of water.