Direction : Study the following data apropos Indian population movements to answer these questions:
| Year | Population in millions | Percentage Decadal Increase |
| 1901 | 240 | – |
| 1911 | 260 | 8.33 |
| 1921 | 252 | -3.1 |
| 1931 | 290 | 15.1 |
| 1941 | 330 | 13.8 |
| 1951 | 390 | 18.2 |
| 1961 | 460 | 17.95 |
| 1971 | 570 | 23.9 |
| 1981 | 700 | 22.8 |
| 1991 | 870 | 24.3 |
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Question 1 of 5
1. Question
The maximum and minimum percentages of decadal increase are
Correct
Ans: d
24.3 and -3.1
Incorrect
Ans: d
24.3 and -3.1
-
Question 2 of 5
2. Question
The percentage decadal increase is almost the same between the years
Correct
Ans: b
18.2 and 17.95
Incorrect
Ans: b
18.2 and 17.95
-
Question 3 of 5
3. Question
The percentage increase of population in 1971 with population of 1941 as the base year is nearly
Correct
Ans: d
[(570-330)/330]*100 = [240/330]*100
=72.73% ≈ 73%
Incorrect
Ans: d
[(570-330)/330]*100 = [240/330]*100
=72.73% ≈ 73%
-
Question 4 of 5
4. Question
The ratio of increase in population between 1901 and 1941 to the increase in population between 1951 and 1991 is nearly
Correct
Ans: c
(330-240)/(870-390) = 90/480 = 3/16
Incorrect
Ans: c
(330-240)/(870-390) = 90/480 = 3/16
-
Question 5 of 5
5. Question
The percentage increase in population over the entire period is nearly……. times the percentage decadal increase between 1961 and 1971
Correct
Ans: b
% decadal increase in population between 1961-1971 is 23.9%.
% decadal increase over the entire per
i.e. between 1901-1991
[(870-240)/240]*100 = 262.5%
(262.5/23.9) ≈ (263/24) ≈ 11 times
Incorrect
Ans: b
% decadal increase in population between 1961-1971 is 23.9%.
% decadal increase over the entire per
i.e. between 1901-1991
[(870-240)/240]*100 = 262.5%
(262.5/23.9) ≈ (263/24) ≈ 11 times
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