A: Every sixth person in the world is an Indian.
R: Life expectancy depends upon average life span.

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).
B. If both Assertion & Reason are true but the reasons is not the correct expalanation of the assertion, then mark (2).
C. If Assertion is true statement but Reason is false, then mark (3)
D. If both Assertion and Reason are false statements, then mark (4).

Answer

To solve the assertion-reason question, we will follow these steps:

### Step 1: Analyze the Assertion
The assertion states: "Every sixth person in the world is an Indian."
- To evaluate this, we can refer to population statistics. According to the 2011 census, the world population was approximately 7.2 billion, and the Indian population was around 1.2 billion.
- If we divide the world population by the Indian population (7.2 billion / 1.2 billion), we find that approximately 6 people in the world correspond to 1 Indian.
- Thus, the assertion is **true**.

### Step 2: Analyze the Reason
The reason states: "Life expectancy depends upon average lifespan."
- Life expectancy is indeed influenced by the average lifespan of individuals within a population. Different countries have varying life expectancies due to factors like healthcare, lifestyle, and mortality rates.
- For example, if we take a hypothetical country where the ages of five individuals are 65, 70, 80, 50, and 60 years, the average lifespan can be calculated, and this average will determine the life expectancy of that population.
- Therefore, the reason is also **true**.

### Step 3: Determine the Relationship
Now, we need to determine if the reason correctly explains the assertion.
- The assertion about the population of Indians does not relate to life expectancy or average lifespan. The reason discusses a different aspect of population health and does not provide an explanation for why every sixth person is Indian.
- Hence, while both statements are true, the reason does not explain the assertion.

### Conclusion
Based on the analysis:
- Both the assertion and reason are true, but the reason is not the correct explanation of the assertion.

The correct answer is: **Both assertion and reason are true, but reason is not the correct explanation of the assertion.**

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