Write a note on BMI.

Explanation

Degree of obesity is assessed by body mass index (BMI). A normal BMI range for adult is 19-25, above 25 is considered as obese, BMI is calculated as body weight in kg, divided by the square of body height in meters. For example, a 50 Kg person with a height of 160 cm would have a BMI of `19.5` .
That is BMI `= 50//1.6^(2) = 19.5`