Mathematics · Data Interpretation
In a decadal population study, the population values (in millions) recorded from 1951 to 2001 are as follows: 1951 (10 million), 1961 (30 million), 1971 (40 million), 1981 (50 million), 1991 (60 million), and 2001 (70 million). In which of the following years is the percentage increase in population the highest compared to its previous census year?
- 12001
- 21981
- 31971
- 41961✓
Correct answer
1961
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