Question

the population of a town increases by 25% annually. If the present population is one crore, then what was the difference between the population 3 years ago and 2 years ago?​

Answer 1

Answer:

Step-by-step explanation:

It is given that the population of the town is increased by 25 per cent and the present population is one crore so 25/100×10000000= 25,00,000 + 1crore = 1-year population, 2-year population =25/100×12500000=3125000+12500000 =15625000

3-year population = 25/100× 15625000=3906250+15625000=19534250 difference= 15625000-19534250=3906250

Answer 2

Answer:

$\huge \tt\color{blue}12,80,000$

Step-by-step explanation:

Present population=1,00,00,000

Let old population be x

Population of 1st year ago=x+x of 25%=1,00,00,000

x=80,00,000

Population of 2nd year ago=x+x of 25%=80,00,00

x=64,00,000

Population of 3rd year ago=x+x of 25%=64,00,000

x=51,20,000

Hence,

Difference between the population 3 years ago and 2 years ago=64,00,000–51,00,000=12,80,000

$= > \color{blue} \bf \color{red}So, 12,80,000 \: is \: the \: right \: \: answer.$

$\huge\tt \red♡ \: \color{navy}Thank \: you \: \color{deeppink}ツ$