The population of a country has been declining at 1 every decade If the projected population of the ...........

Quantitative Aptitude (CHSL) Percentage

The population of a country has been declining at 1% every decade. If the projected population of the country in 2030 is given

as 1940598, what was the population of the country in 2000?

This questions was previously asked in

SSC CHSL 1st June 2022 Shift-3

2000000

1999990

2000450

2000616

- Projected Population in 2030: 1,940,598.

- Decline Rate: 1% every decade.

- Timeframe: From 2000 to 2030 is three decades.

- Calculation:

- The population is subject to a compound decline.

- Formula: Future Population = Present Population * (1 - Decline Rate)^Number of Decades.

- Rearranging gives: Present Population = Future Population / (0.99^3).

- Calculation Process:

- 1,940,598 / 0.99^3 ˜ 2,000,000.

- Option 1: 2,000,000 is correct when rounded to the nearest integer.

- Option 2: 1,999,990 is close but not exact.

- Option 3: 2,000,450 is higher than the calculated value.

- Option 4: 2,000,616 exceeds the required population.

Correct Answer: Option 1 - 2,000,000

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