### XAT 2021 Question 24

Instructions

The following plot describes the height (in cm), weight (in kg), age (in years) and gender (F for female, M for male) of 20 patients visiting a hospital.

A person’s body mass index (BMI) is calculated as weight (in kg) divided by squared height (measured in square metres). For example, a person weighing 100 kg and of height 100 cm (1m) will have a BMI of 100. A person with BMI less than or equal to 18.5 is considered as underweight, above 18.5 but less than or equal to 25 as normal weight, above 25 but less than or equal to 30 as overweight, and above 30 as obese.

Question 24

# The BMI of the oldest person considered as normal weight is approximately

Solution

The BMI of 1st oldest person= $$\frac{40}{\left(1.5\right)^2}=\ 17.77$$

The BMI of next oldest person = $$\frac{61}{\left(1.75\right)^2}=19.9$$