if the human body consists of 2/3 of water by mass find the percentage of water in a person of mass 45kg
Question
If the human body consists of 2/3 of water by mass, find the percentage of water in a person of mass 45 kg.
Solution
Sure, here's how you can calculate it:
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First, understand that when we say the human body is 2/3 water by mass, it means that 2/3 of the total body mass is water.
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To find the mass of water in a 45kg person, multiply the total mass by 2/3.
Calculation: 45kg * 2/3 = 30kg
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To convert this to a percentage, divide the mass of the water by the total mass and then multiply by 100.
Calculation: (30kg / 45kg) * 100 = 66.67%
So, a 45kg person is approximately 66.67% water by mass.
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