The following table shows Net National Income (in lakh crore) and Per capita…
2023
The following table shows Net National Income (in lakh 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 lakh 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 percentage growth in the population of India by the year 2019-20 is
Answer: B. ~ 4.4% — ConceptWhen a total amount and a per-capita amount are known, the corresponding population is proportional to total amount divided by per-capita amount. To…
- A.
~ 6.2%
- B.
~ 4.4%
- C.
~ 7.1%
- D.
~ 3.1%
Attempted by 1 students.
Show answer & explanation
Correct answer: B
Concept
When a total amount and a per-capita amount are known, the corresponding population is proportional to total amount divided by per-capita amount. To find percentage growth, compare the later derived population with the earlier derived population, subtract 1, and multiply by 100.
Application
For 2015-16, the population factor is 122/95.
For 2019-20, the population factor is 177/132.
The population ratio is (177/132) divided by (122/95) = (177 × 95)/(132 × 122) = 1.0441505.
Percentage growth = (1.0441505 - 1) × 100 = 4.41505%, which is approximately 4.4%.
Cross-check
Cross-check: using approximate population factors, 122/95 = 1.2842 and 177/132 = 1.3409; the increase 0.0567 over 1.2842 is about 4.42%.
Result
Therefore, the population grew by approximately 4.4%.