Question

Genius Rank help me

Calculate the BMI
1. Maria Jose's weight is 20 kgs and her height is 110 cm. Get the BMI.

2.Freya's weight is 30 kgs and her height is 142 cm. What is Freya's BMI?

3. Sam's weight is 50 kgs and his height is 163 cm. What is Sam's BMI?​

Answer 1

1) 16.5 (nearest tenth)

2) 14.9 (nearest tenth)

3) 18.8 (nearest tenth)

Explanation:

Formula for calculating BMI

`\boxed {\sf BMI=(10000 * weight\:(kg))/(\left[height\:(cm)\right]^2)}`

Where weight is measured in kg and height is measured in cm.

Question 1

Given:

• weight = 20 kg
• height = 110 cm

Substitute the given values into the formula to find Maria Jose's BMI:

`\begin{aligned}\implies \sf BMI & = \sf (10000 * 20)/(110^2)\\\\& = \sf (200000)/(12100)\\\\& = \sf 16.5\:(nearest\:tenth)\end{aligned}`

Question 2

Given:

• weight = 30 kg
• height = 142 cm

Substitute the given values into the formula to find Freya's BMI:

`\begin{aligned}\implies \sf BMI & = \sf (10000 * 30)/(142^2)\\\\& = \sf (300000)/(20164)\\\\& = \sf 14.9\:(nearest\:tenth)\end{aligned}`

Question 3

Given:

• weight = 50 kg
• height = 163 cm

Substitute the given values into the formula to find Sam's BMI:

`\begin{aligned}\implies \sf BMI & = \sf (10000 * 50)/(163^2)\\\\& = \sf (500000)/(26569)\\\\& = \sf 18.8\:(nearest\:tenth)\end{aligned}`