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%

If the number of patients increases by 10% every year in Europe, then what is the difference between the number of patients in Europe after two years and the number of Kidney patients in South America in 2023?

The correct option is 8 lakh.

Step-by-step Explanation:

1. Find the total number of patients in the world in the year 2023:
According to the given passage, the total population of the world in 2023 is 800 crore, and 10% of them are patients.
Total patients in the world in 2023 is calculated as:
$$\text{Total Patients}=10\%\text{of}800\text{crore}=\frac{10}{100}$$

2. Calculate the number of patients in Europe after 2 years:
From Table - II, Europe has 10% of all patients in the world in 2023.
So, the number of patients in Europe in 2023 is:
$$\text{Patients in Europe (2023)}=10\%\text{of}80\text{crore}=\frac{10}{100}$$
If the number of patients in Europe increases by 10% every year, then after 2 years, the number of patients in Europe will be:
$$\text{Patients in Europe after 2 years}=8\times {\left(1+\frac{10}{100}\right)}^2$$
$$=8\times {\left(1.1\right)}^2$$

3. Calculate the number of Kidney patients in South America in 2023:
From Table - I, Kidney disease patients account for 30% of all patients in the world.
So, the total number of Kidney patients in the world is:
$$\text{Total Kidney Patients}=30\%\text{of}80\text{crore}=\frac{30}{100}$$
From Table - II, South America accounts for 40% of the total Kidney patients.
Therefore, the number of Kidney patients in South America in 2023 is:
$$\text{Kidney Patients in South America (2023)}=40\%\text{of}24\text{crore}=\frac{40}{100}$$

4. Compute the difference:
Now, find the difference between the number of patients in Europe after 2 years and the number of Kidney patients in South America in 2023:
$$\text{Difference}=9.68\text{crore}-9.6\text{crore}=0.08\text{crore}$$
Since 1 crore is equal to 100 lakh, we convert the difference to lakhs:
$$\text{Difference in Lakhs}=0.08\times 100\text{lakh}=8\text{lakh}$$
Thus, the difference is 8 lakh.