Question

The current population of a city is 26010. It grows at a rate of 2% each year.
What was the population of the city 2 years ago ?
(b) 25100
(c) 25200 (d) 25500
(a) 25000​

Answer 1

Given

• Present Population= 26010
• Growth Rate= 2%
• Time= 2 years

To Find

• Total population after 2 years ago

Formula used

$\mathtt{Amount= P×\left( 1 - \cfrac{r}{100}\right) ^n}$

Where

• Amount= Total population
• Principal= Present Population
• R stand for Rate
• T stand for Time

Putting the Value of Principal,Rate and Time

In formula

$\mathtt{Amount= 26010×\left( 1 - \cfrac{2}{100}\right) ^2}$

$\mathtt{Amount= 26010×\left( \cfrac{100 - 2}{100}\right) ^2}$

$\mathtt{Amount= 26010×\left( \cfrac{98}{100}\right) ^2}$

$\mathtt{Amount= 26010×\left( \cfrac{49}{50}\right) ^2}$

$\mathtt{Amount= 26010× \cfrac{2401}{2500} }$

$\mathtt{Amount= 10.404 \times 2401 }$

$\mathtt{Amount= 24980 }$

• Total population after 2 years ago= 24980

Answer 2

Step-by-step explanation:

answer is in the attachment

hope this helps you