Question

Find the percentage of water in a person weighing 45 kg, if the human body consists of 2/3 of water by weight . .Com.

Answer 1

Weight of water = 2/3 × 45

Weight of water = 30 kg

Percentage = 30/45 × 100

Percentage = 66.6 %

Answer 2

Answer:

The percentage of water is 66.6 %.

Explanation:

Given that,

Weight of person = 45 kg

If the human body consists of 2/3 of water by weight.

We need to calculate the water in a person

$Water =\dfrac{2}{3}\times45$

$Water =30\ kg$

We need to calculate the percentage of water

$W=\dfrac{weight\ of\ water}{Actual\ weight}\times100$

$W=\dfrac{30}{45}\times100$

$W=66.6\%$

Hence, The percentage of water is 66.6 %.