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?
Correct Answer :
8 lakh
Solution :
The correct answer is 8 lakh.
Let us work through this problem carefully, step by step, using the data from both tables.
Step 1: Find the Total Number of Patients in the World (2023)
Total world population = 800 crore
Patients = 10% of 800 crore
Step 2: Find the Number of Patients in Europe in 2023
From Table II, Europe accounts for 10% of all patients.
Step 3: Find the Number of Patients in Europe After Two Years
The number of patients in Europe increases by 10% every year. This means each year the count is multiplied by 1.1.
After Year 1:
After Year 2:
Step 4: Find the Total Number of Kidney Patients in the World (2023)
From Table I, Kidney Disease accounts for 30% of all patients worldwide.
Step 5: Find the Number of Kidney Patients in South America (2023)
From Table II, South America accounts for 40% of Kidney patients.
Step 6: Calculate the Difference
Converting to lakh:
Therefore, the difference between the number of patients in Europe after two years and the number of Kidney patients in South America in 2023 is 8 lakh.
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