Question

The body mass index (BMI), or Quetlet index, is a heuristic proxy for human body fat based on an individual's weight and height. BMI does not actually measure the percentage of body fat. Body mass index is defined as the individual's body weight divided by the square of his or her height. The formula universally used in medicine produce a unit of measure of kg/m2. Archana, who is 32 years old, consumes 1900 calories per day and does no exercise. She weighs 150 pounds and she is 5.3 feet tall. Choose the correct answer regarding her BMI. [Note : 1 pound = 0.45 kg; 1 foot = 30.4 cm.]
A. Archana’s BMI is 40.4 and she is over-weighed
B. Archana’s BMI is 26.01 and she is over-weighed
C. Archana’s BMI is 40.4 and she is obese
D. Archana’s BMI is 28.86 and she is obese

Answer 1

Hint: The world has a growing economy. It has divided the world into rich and poor. The poor are becoming poorer due to the rising prices. This has made it difficult for them to access the materials and goods. The increased competition has deprived them of food which leads them to malnutrition conditions.

Step by step answer:BMI - Body mass index is the calculation of the fat in the body based on the height and weight of the person. It is not calculated as a percentage but Is an absolute number. The standards are used to measure BMI.
The formula for the particular is the individual's body weight divided by the square of his or her height. The weight is to be in kg (kilogram) and the height is in the meters (m).
The standard says that if the BMI of a person is less than 18.5 – he/she is underweight.
BMI between 18.5 – 24.9 depicts a healthy person.
BMI between 25 – 29.9 shows that the person is overweight.
Now let us calculate the BMI for Archana,
As 1 pound = 0.45 kg then
150 pounds = $0.45 \times 150$
= 67.5 kg
Given that, 1 foot = 30.4 cm = 0.304 m
Then, her height 5.3 feet = $5.3 \times 0.304$= 1.61m
Applying the formula, BMI = $\dfrac{{weight}}{{heigh{t^2}}}$
= $\dfrac{{67.5}}{{{{1.61}^2}}}$
= 26.04
As the BMI is between 25 – 29.9, this means she is overweighed.
Hence, the answer is option B: Archana’s BMI is 26.01 and she is over-weighed

Note: The BMI is not a diagnostic tool for measuring the relative fat. It should be used for screening of individuals. As BMI increases, exposure to disease also increase. The major problems with increased weight are obesity and cardiovascular diseases.