Answer
The age at which the women body fat reaches maximum is $55$ and the percentage is $38$.
Work Step by Step
From the given graph we can observe that at the age of 25, the percent body fat in women is 34.
It then starts increasing until it reaches the value of 38 at the age of 55.
Thus, the interpretation of the graph represents that the percent body fat in women is increasing in the interval $\left( 25,55 \right)$.
The maximum value is obtained at an age of 55 years of age, the percent body fat in women is 38.
Hence,at 55 years of age the percent body fat in women reaches a maximum value, that is, 38.
