Question:
Define the term `Body Mass Index'. Explain the method of its calculation.
Define the term `Body Mass Index'. Explain the method of its calculation.
Show Hint
Remember the BMI formula:
\[
\boxed{\text{BMI}=\frac{\text{Weight (kg)}}{\text{Height}^2\text{ (m}^2\text{)}}}
\]
Units:
• Weight -- Kilograms (kg)
• Height -- Metres (m)
Always square the height before dividing.
• Weight -- Kilograms (kg)
• Height -- Metres (m)
Always square the height before dividing.
Updated On: Jul 28, 2026
Show Solution
Verified By Collegedunia
Solution and Explanation
Step 1: Meaning of Body Mass Index (BMI).
Body Mass Index (BMI) is a commonly used indicator to assess whether a person's body weight is appropriate for his or her height. It is widely used by doctors and health experts to identify whether a person is underweight, normal, overweight or obese. BMI provides a simple method for evaluating nutritional and health status.
Step 2: Importance of BMI.
BMI is an important indicator of health because it helps identify the risk of diseases associated with undernutrition and overnutrition. Maintaining a healthy BMI reduces the chances of health problems such as diabetes, hypertension, heart disease and obesity-related disorders.
Step 3: Formula for calculating BMI.
Body Mass Index is calculated by dividing a person's weight (in kilograms) by the square of his or her height (in metres). \[ \boxed{\text{BMI}=\frac{\text{Weight (kg)}}{\left(\text{Height (m)}\right)^2}} \]
Step 4: Example of calculation.
Suppose a person's weight is 64 kg and height is 1.60 m. \[ \text{BMI}=\frac{64}{(1.60)^2} =\frac{64}{2.56} =25 \] Hence, the person's Body Mass Index is: \[ \boxed{\text{BMI}=25} \]
Step 5: Interpretation of BMI.
A BMI within the recommended range generally indicates a healthy body weight. A very low BMI may indicate undernutrition, whereas a high BMI may indicate overweight or obesity. Therefore, BMI is widely used as a health indicator in medical practice and public health programmes.
Step 6: Final conclusion.
Thus, Body Mass Index is a simple and reliable measure used to assess whether a person's weight is appropriate for his or her height. \[ \boxed{\text{BMI}=\frac{\text{Weight (kg)}}{\text{Height}^2\text{ (m}^2\text{)}}} \] Body Mass Index (BMI) is an indicator used to assess whether a person's weight is appropriate for his or her height. It is calculated by dividing weight in kilograms by the square of height in metres.
Body Mass Index (BMI) is a commonly used indicator to assess whether a person's body weight is appropriate for his or her height. It is widely used by doctors and health experts to identify whether a person is underweight, normal, overweight or obese. BMI provides a simple method for evaluating nutritional and health status.
Step 2: Importance of BMI.
BMI is an important indicator of health because it helps identify the risk of diseases associated with undernutrition and overnutrition. Maintaining a healthy BMI reduces the chances of health problems such as diabetes, hypertension, heart disease and obesity-related disorders.
Step 3: Formula for calculating BMI.
Body Mass Index is calculated by dividing a person's weight (in kilograms) by the square of his or her height (in metres). \[ \boxed{\text{BMI}=\frac{\text{Weight (kg)}}{\left(\text{Height (m)}\right)^2}} \]
Step 4: Example of calculation.
Suppose a person's weight is 64 kg and height is 1.60 m. \[ \text{BMI}=\frac{64}{(1.60)^2} =\frac{64}{2.56} =25 \] Hence, the person's Body Mass Index is: \[ \boxed{\text{BMI}=25} \]
Step 5: Interpretation of BMI.
A BMI within the recommended range generally indicates a healthy body weight. A very low BMI may indicate undernutrition, whereas a high BMI may indicate overweight or obesity. Therefore, BMI is widely used as a health indicator in medical practice and public health programmes.
Step 6: Final conclusion.
Thus, Body Mass Index is a simple and reliable measure used to assess whether a person's weight is appropriate for his or her height. \[ \boxed{\text{BMI}=\frac{\text{Weight (kg)}}{\text{Height}^2\text{ (m}^2\text{)}}} \] Body Mass Index (BMI) is an indicator used to assess whether a person's weight is appropriate for his or her height. It is calculated by dividing weight in kilograms by the square of height in metres.
Was this answer helpful?
0
0
Top CBSE X Social Science Questions
- Read the following source carefully and answer the questions that follow:
Print Comes to India
From 1780, James Augustus Hickey began to edit the Bengal Gazette, a weekly maga zine that described itself as ‘a commercial paper open to all, but influenced by none’. So it was private English enterprise, proud of its independence from colonial influence, that began English printing in India. Hickey published a lot of advertisements, including those that related to the import and sale of slaves. But he also published a lot of gossip about the Company’s senior officials in India. Enraged by this, Governor-General War ren Hastings persecuted Hickey, and encouraged the publication of officially sanctioned newspapers that could counter the flow of information that damaged the image of the colonial government. By the close of the eighteenth century, a number of newspapers and journals appeared in print. There were Indians, too, who began to publish Indian news papers. The first to appear was the weekly Bengal Gazette, brought out by Gangadhar Bhattacharya, who was close to Raja Rammohan Roy. - Read the following source carefully and answer the questions that follow:
Loans from Cooperatives
Besides banks, the other major source of cheap credit in rural areas are the cooperative societies (or cooperatives). Members of a cooperative pool their resources for coopera tion in certain areas. There are several types of cooperatives possible such as farmers cooperatives, weavers cooperatives, industrial workers cooperatives, etc. Krishak Coop erative functions in a village not very far away from Sonpur. It has 2300 farmers as members. It accepts deposits from its members. With these deposits as collateral, the Cooperative has obtained a large loan from the bank. These funds are used to provide loans to members. Once these loans are repaid, another round of lending can take place. Krishak Cooperative provides loans for the purchase of agricultural implements, loans for cultivation and agricultural trade, fishery loans, loans for construction of houses and for a variety of other expenses. - Arrange the following incidents in chronological order and choose the correct option.
1. French Revolution
2. Napoleon’s invasion of Italy
3. Unification of Italy
4. Vienna Peace Treaty - Choose the correct option to fill in the blank.
______ from India and Southeast Asia traveled through ‘Silk Route’ to other parts of the world. - Choose the correct option, related to the founders of the ‘Swaraj Party’ within the Congress.
View More Questions
Top CBSE X Human Development Questions
- Which of the following organisations publishes the 'Human Development Report'?
- Choose the correct option to fill the blank:
Literacy Rate is expressed as a proportion of the literate population in the age group ________ and above. - Study the data of a State given below and answer the question that follow:
If rural children aged 10--14 years are considered, then how many female children are attending school? - Study the data of a State given below and answer the question that follow:
If rural children aged 10--14 years are considered, then how many female children are attending school? - Study the following table and arrange the States from lower to higher on the basis of `Life Expectancy at Birth' and choose the correct option:
Options:
Top CBSE X Questions
- Read the following source carefully and answer the questions that follow:
Print Comes to India
From 1780, James Augustus Hickey began to edit the Bengal Gazette, a weekly maga zine that described itself as ‘a commercial paper open to all, but influenced by none’. So it was private English enterprise, proud of its independence from colonial influence, that began English printing in India. Hickey published a lot of advertisements, including those that related to the import and sale of slaves. But he also published a lot of gossip about the Company’s senior officials in India. Enraged by this, Governor-General War ren Hastings persecuted Hickey, and encouraged the publication of officially sanctioned newspapers that could counter the flow of information that damaged the image of the colonial government. By the close of the eighteenth century, a number of newspapers and journals appeared in print. There were Indians, too, who began to publish Indian news papers. The first to appear was the weekly Bengal Gazette, brought out by Gangadhar Bhattacharya, who was close to Raja Rammohan Roy. - Read the following source carefully and answer the questions that follow:
Loans from Cooperatives
Besides banks, the other major source of cheap credit in rural areas are the cooperative societies (or cooperatives). Members of a cooperative pool their resources for coopera tion in certain areas. There are several types of cooperatives possible such as farmers cooperatives, weavers cooperatives, industrial workers cooperatives, etc. Krishak Coop erative functions in a village not very far away from Sonpur. It has 2300 farmers as members. It accepts deposits from its members. With these deposits as collateral, the Cooperative has obtained a large loan from the bank. These funds are used to provide loans to members. Once these loans are repaid, another round of lending can take place. Krishak Cooperative provides loans for the purchase of agricultural implements, loans for cultivation and agricultural trade, fishery loans, loans for construction of houses and for a variety of other expenses. - More than three million carbon compounds have been discovered in the field of chemistry. The diversity of these compounds is due to the capacity of carbon atoms for bonding with one another as well as with other atoms. Most of the carbon compounds are poor conductors of electricity and have low melting and boiling points.
- Human digestive system is a tube running from mouth to anus. Its main function is to breakdown complex molecules present in the food which cannot be absorbed as such into smaller molecules. These molecules are absorbed across the walls of the tube and the absorbed food reaches each and every cell of the body where it is utilised for obtaining energy.
- A student has three convex lenses A, B, and C of different focal lengths. He wants to observe the images formed by these lenses on a screen by placing a candle flame at different distances as given in the following table:
Case No. Lens Focal Length Object Distance 1 \(A\) 50 cm 25 cm 2 B 20 cm 60 cm 3 C 15 cm 30 cm
View More Questions