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The number of kilograms of water in a person's body caries directly as the person's mass. A person with a mass of 90 kg contains 60kg of water. how many kilograms of water are in a person whose mass is
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The number of kilograms of water in a person's body caries directly as the person's mass. A person with a mass of 90 kg contains 60kg of water. how many kilograms of water are in a person whose mass is 75 kg

User Adam Stelmaszczyk
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\begin{gathered} \text{Let's K is the ratio of body's mass to the water mass.} \\ So,\text{ k=}(90)/(60)=1.5 \\ So\text{, the mass of water in 75 kg person is } \\ \Rightarrow m=(75)/(k)=(75)/(1.5)=50\operatorname{kg} \end{gathered}

User Nicolas Lehuen
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