Question

The population of village A and B in Certain year is in
the ratio 3:4 in the next year, the popletation of
Village B increased by 20% and became equal to 72000
What was tatal poputation in the two village togather
in the first year?​

Answer 1

Answer:

4567%

Step-by-step explanation:

the ratio village 2

,, ,,. ,,. 1

2o% 72000

*multi ply by 20/72000 ans is 4567%

Answer 2

Answer:

⇒ The total population of villages A and B = 105000

Step-by-step explanation:

Given data

The population of the villages A and B in a certain year = 3 : 4

in the next year the population of the B is increased by 20%

and it is equals 72000

Here we need to find population of the two villages in first year

let 3x and 4x be the population of villages A and B

then the next year the population of village B is increased by 20%

⇒  20% of 4x =  $\frac{20}{100} (4x)$  = $\frac{4x}{5}$  

⇒ After increasing the total population B = 4x + $\frac{4x}{5}$ = $\frac{20x+4x}{5}$  = $\frac{24x}{5}$  

⇒ from given data $\frac{24x}{5} = 72000$  

                              24x = 360000  

                                 x = 15000

⇒ population of villages A and B is

  village A = 3(15000) = 45000

  village B = 4(15000) = 60000

⇒ The total population of villages A and B at first year

                     = 45000+60000 = 105000