Question

Assume that human body is 80% water.Calculate the number of molecules of water that are present in the body of a person whose weight is 65kg.

Answer 1

Answer:

80%of 65

$80 \div 100 \times 65$

short form of 80/100=4/5

$4 \div 5 \times 65$

65÷5=13

now 13×4=52 kg

so his body has 52 kg water

Explanation:

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Answer 2

Answer:

the first answer is correct so I don't need to explane the answer