Read the following passage and answer the question.

The following table – 1 shows the percentage (%) distribution of patients of various diseases in the various continents, namely, Europe, Australia, South America, Africa, North America and Asia in the world and table II shows the percentage (%) distribution of all the patients and Kidney patients in year 2023. Total population of the world in the year 2023 is 800 crore and 10% of them are patients.

Based on the data in the tables, answer the questions that follow.

Table – I: Disease – wise Percentage of Patients in the world

Heart Disease	AIDS	TB	Hepatitis	Kidney Disease	Others
22%	10%	8%	6%	30%	24%

Table -II: Continent – wise Details of all Patients and Kidney Patients

Continent	Percentage Distribution of
	All Patients	Kidney Patients
Europe	10%	10%
Australia	6%	5%
South America	15%	40%
Africa	25%	10%
North America	12%	15%
Asia	32%	20%

The number of Kidney patients in Australia is approximately % of heart disease in the world.

The correct option is 6.82%.

To find the required percentage, we break down the calculations step-by-step using the data provided in the tables:

Step 1: Calculate the total number of patients in the world.
The total population of the world in 2023 is 800 crore, and 10% of them are patients.
Total Patients in the world is:

$$\text{Total Patients}=10\%\text{of}800\text{crore}=\frac{10}{100}\times 800=80\text{crore}$$

Step 2: Calculate the number of Heart Disease patients in the world.
According to Table – I, Heart Disease patients constitute 22% of the total patients in the world.
Total Heart Disease patients is:

$$\text{Heart Disease Patients}=22\%\text{of}80\text{crore}=\frac{22}{100}\times 80=17.6\text{crore}$$

Step 3: Calculate the number of Kidney patients in Australia.
According to Table – I, Kidney Disease patients constitute 30% of the total patients in the world.
Total Kidney patients in the world is:

$$\text{Total Kidney Patients}=30\%\text{of}80\text{crore}=\frac{30}{100}\times 80=24\text{crore}$$

According to Table – II, the percentage distribution of Kidney patients in Australia is 5% of the total Kidney patients in the world.
Number of Kidney patients in Australia is:

$$\text{Kidney Patients in Australia}=5\%\text{of}24\text{crore}=\frac{5}{100}\times 24=1.2\text{crore}$$

Step 4: Find the percentage of Kidney patients in Australia relative to Heart Disease patients in the world.
We need to find what percentage 1.2 crore (Kidney patients in Australia) is of 17.6 crore (Heart Disease patients in the world):

$$\text{Required Percentage}=\left(\frac{1.2\text{crore}}{17.6\text{crore}}\right)\times 100$$

Simplifying the fraction:

$$\text{Required Percentage}=\frac{1.2}{17.6}\times 100=\frac{12}{176}\times 100=\frac{3}{44}\times 100=\frac{300}{44}=\frac{75}{11}\%\approx 6.818\%$$

Rounding to two decimal places, we get approximately 6.82%.