Table I shows the disease-wise percentage distribution of patients in the world. Table II shows the continent-wise percentage distribution of all patients and of kidney patients. The total world population in 2023 is 800 crore and 10 percent of them are patients.
| Disease | Percentage |
|---|---|
| Heart Disease | 22 |
| AIDS | 10 |
| TB | 8 |
| Hepatitis | 6 |
| Kidney Disease | 30 |
| Others | 24 |
| Continent | 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 the number of hepatitis patients to the number of heart disease patients in the world?
A156 : 673
B14 : 61
C159 : 671 ✓ Correct
D2 : 11
Correct answer: (C) 159 : 671
Explanation
The new ratio is 159 to 671, so that is the answer.
There are 80 crore patients, and hepatitis is 6 percent, which is 4.8 crore.
Increasing 4.8 crore by 6 percent gives about 5.088 crore.
Heart disease is 22 percent, which is 17.6 crore.
Increasing 17.6 crore by 22 percent gives about 21.472 crore.
The ratio of 5.088 to 21.472 simplifies to about 159 to 671.
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