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 hepatitis patients in the world increases by 6% and that of heart disease increases by 22%, then what will be the new ratio of number of hepatitis patients to the number of heart disease patients in the world?
Correct Answer :
159:671
Solution :
The correct answer is 159 : 671.
Let us work through this step by step using the data from the two tables provided.
Step 1: Find the total number of patients in the world.
Total world population = 800 crore
Patients = 10% of 800 crore
Step 2: Find the original number of Hepatitis patients.
From Table I, Hepatitis = 6% of all patients.
Step 3: Find the original number of Heart Disease patients.
From Table I, Heart Disease = 22% of all patients.
Step 4: Apply the given increases.
Hepatitis patients increase by 6%:
Heart Disease patients increase by 22%:
Step 5: Form and simplify the new ratio.
Multiply both terms by 1000 to eliminate decimals:
Now divide both by their GCD, which is 32:
Therefore, the new ratio of hepatitis patients to heart disease patients is 159 : 671.
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