Explanation: Understanding the fraction of the world's population that lives in India is a key concept in global demographics. As of recent estimates, the world's population is approximately 7.9 billion people. India, with a population of around 1.38 billion, constitutes a significant portion of this total.
To determine the fraction of the world's population that lives in India, we can use the following calculation:
\[
\text{Fraction of world population in India} = \frac{\text{India's population}}{\text{World's population}} = \frac{1.38 \text{ billion}}{7.9 \text{ billion}}
\]
Simplifying this fraction:
\[
\frac{1.38}{7.9} \approx 0.1747
\]
This fraction is approximately 0.17, which is close to one-sixth (1/6 ≈ 0.1667). Therefore, the correct answer is that approximately one-sixth of the world's population lives in India.
It is important to note that population figures are dynamic and can change over time due to factors such as birth rates, death rates, and migration. However, the fraction of the world's population living in India remains a significant and stable proportion.
Understanding this concept is crucial for various competitive examinations, as it helps in comprehending global demographic trends and the relative size of different countries' populations. It also aids in analyzing the impact of India's population on global issues such as resource consumption, economic growth, and environmental sustainability.
In summary, the fraction of the world's population that lives in India is approximately one-sixth, reflecting India's significant role in global demographics. This understanding is essential for students preparing for competitive examinations and for anyone interested in global population trends.