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प्रश्न
70% of our body weight is made up of water. Find the weight of water in the body of a person whose body weight is 56 kg.
उत्तर
Water in the human body = 70%
Weight of a man = 56 kg
Quantity of water in him = 70% of 56
= `70/100xx56`
= 39.2 kg
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