Step-by-step explanation:
[tex]Concentration=\frac{\text{number of cups of orange juice}}{\text{number of cups of orange juice+number of cups of water}}[/tex]
For Clare,
[tex]\text{number of orange cups}=\frac{1}{3} \\\text{number of water cups}=\frac{5}{2}[/tex]
Concentration=[tex]\frac{\frac{1}{3} }{\frac{5}{2} +\frac{1}{3}} =\frac{\frac{1}{3}}{\frac{17}{6} }=\frac{2}{17}=0.117[/tex]
For Han,
[tex]\text{number of orange cups}=\frac{1}{4}\\\text{number of water cups}=\frac{5}{3}[/tex]
Concentration=[tex]\frac{\frac{1}{4} }{\frac{5}{3} +\frac{1}{4}} =\frac{\frac{1}{4}}{\frac{23}{12} }=\frac{3}{23}=0.130[/tex]
So,Hans concentration is greater.