The following table shows the year-wise data related to the number of…
2023
The following table shows the year-wise data related to the number of registered cars in four cities (A, B, C, and D) during the four years from 2017 to 2020. The last column gives the population data (in millions) for these cities for the year 2020.
City | Registered Cars (2017) | Registered Cars (2018) | Registered Cars (2019) | Registered Cars (2020) | Population in 2020 (in millions) |
A | 7500 | 8000 | 9000 | 9500 | 0.8 |
B | 1200 | 1350 | 1400 | 1500 | 0.2 |
C | 6000 | 7500 | 8500 | 10000 | 0.6 |
D | 5000 | 6000 | 6600 | 7400 | 0.75 |
What is the average of the percentage growth (%) of registered cars in all cities from the year 2017 to 2018?
- A.
~ 18%
- B.
~ 16%
- C.
~ 14%
- D.
~ 12%
Show answer & explanation
Correct answer: B
To find the average percentage growth from 2017 to 2018, calculate individual growth for each city. City A: (8000-7500)/7500 ≈ 6.67%. City B: (1350-1200)/1200 = 12.5%. City C: (7500-6000)/6000 = 25%. City D: (6000-5000)/5000 = 20%. Average growth = (6.67 + 12.5 + 25 + 20) / 4 ≈ 16.04%.