The following table shows Net National Income (in Lac Crore) and Per capita Net National Income (in thousand) of India during the 5 year period from the year 2015-16 to 2019-20. Based on the data in the table, answer the questions that follow
| Year | Net National Income (in Lac, Crore rupees) |
Per Capita Net National Income (in thousand rupees) |
| 2015-16 | 122 | 95 |
| 2016-17 |
136 |
105 |
| 2017-18 |
151 |
115 |
| 2018-19 |
167 |
126 |
| 2019-20 |
177 |
132 |
With reference to the year 2015-16, the percentagem growth in the population of India by the year 2019-20 is
Correct Answer :
∼ 4.4%
Solution :
The correct option is ∼ 4.4%.
Step-by-Step Explanation:
To find the percentage growth in the population of India from the year 2015-16 to the year 2019-20, we can use the mathematical relationship between Net National Income, Per Capita Net National Income, and Population.
The formula for Per Capita Net National Income is given by:
Rearranging the terms, we can express the population as:
Thus, the population () is directly proportional to the ratio of Net National Income to Per Capita Net National Income:
From the table, we extract the following data points for the reference year 2015-16 and the target year 2019-20:
1. For 2015-16: Net National Income = 122 Lac Crore rupees; Per Capita Net National Income = 95 thousand rupees.
2. For 2019-20: Net National Income = 177 Lac Crore rupees; Per Capita Net National Income = 132 thousand rupees.
Let's calculate the relative population values for both years:
For 2015-16:
For 2019-20:
Now, we compute the percentage growth in population from 2015-16 to 2019-20 using the growth formula:
Substituting the proportional values:
Simplifying the fraction:
Calculate the products in the numerator and denominator:
Substitute these values back into the percentage growth equation:
Therefore, the percentage growth in the population of India by the year 2019-20 is approximately 4.4%.
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