Question

The population of a city in the year 2000 was 500,000. Over the following decade the population
grew by 8%. What was the population of the city in 2010?​

Answer 1

Step by step explanation:-

Population in year 2000=500,000

1. Divide 8/100,then multiply it by 500,000
2. Your answer will be 40,000
3. Now add 40,000 and 500,000

Answer=540,000 people

Population of city will be 540,000 in year 2010

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Answer 2

Answer:

540,000.

Step-by-step explanation:

If population increase is given per decade:

Population after n decades (Pn) is given by

Pn = Po × (1 + r/100)

where, Pn is population after ‘n’ number of decades; Po is Initial population considered; n is number of decades and r is geometric rate constant per decade.

Calculation:

Given, initial population in 2000,

Po = 500,00;

Rate of increase in population per decade, r = 8%;

No. of decades considered, n = 1.

∴ Population in 2010,

P2010 = 500,000 × (1 + 8/100)

= 540000

Therefore, the population of the city in 2010 is 540,000.

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