Directions : Study the graph and answer the questions: The bar chart is given…
2024
Directions : Study the graph and answer the questions:
The bar chart is given below:
In which census year, the per cent increase in population is least as compared to that in the previous census year?
- A.
1971
- B.
1987
- C.
1976
- D.
1988
Attempted by 1 students.
Show answer & explanation
Correct answer: A
Step-by-Step Solution
To find the year with the least percentage increase, we must calculate the growth rate for each decade using the formula: Percentage Increase = [(Current Year Population - Previous Year Population) / Previous Year Population] * 100
Based on the graph, we can approximate the values:
1951: ~28
1961: ~32
1971: ~36
1981: ~44
1991: ~54
2001: ~68
Calculate Growth Rates:
1951 to 1961: (32-28)/28 ≈ 14.3%
1961 to 1971: (36-32)/32 = 12.5%
1971 to 1981: (44-36)/36 ≈ 22.2%
1981 to 1991: (54-44)/44 ≈ 22.7%
1991 to 2001: (68-54)/54 ≈ 25.9%
Comparing these percentages, the increase from 1961 to 1971 is the lowest. Therefore, the census year 1971 shows the least percentage increase compared to the previous decade.