BMI is calculated by using the formula:

Correct option is C

Ans. (c)
Sol. Body Mass Index (BMI) is calculated using the formula:

This measurement helps assess whether a person is underweight, normal weight, overweight, or obese based on their body mass relative to height. The standard BMI categories are:
· Underweight: BMI < 18.5
· Normal weight: 18.5 – 24.9
· Overweight: 25 – 29.9
· Obese: BMI ≥ 30
Explanation of each option:
· (a) Weight (kg) × Height (m)² – Incorrect. This formula does not correctly define BMI.
· (b) Height (m)² / Weight (kg) – Incorrect. This is the inverse of the correct formula.
· (c) Weight (kg) / Height (m)² – Correct. This is the standard BMI formula used worldwide.
· (d) Weight (lb) + Height (m)² – Incorrect. BMI is not calculated by adding weight and height.
Thus, the correct answer is (c) Weight (kg) / Height (m)², as it correctly defines the BMI calculation formula.