Question

in a certain year, the population of a town was 9000. if the next year the population of males increases by 6% and that of females by 7% and the total population increases to 9595 .then what was the ratio of population of males and females in that given year?

Answer 1

Answer:

7: 11

Step-by-step explanation:

Let m and n be population of males and females.

m + n = 9000  ====> Equation 1

6% of m + 7% of n = 9595 - 9000

6m/100 + 7n/100 = 595

6m + 7n = 59500 ======> Equation 2.

//Solve Equation 1 and Equation 2

6m + 6n = 54000

6m + 7n = 59500

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-n = -5500 => n = 5500

m = 9000 - 5500 = 3500

Ratio of males to females = 3500 : 5500 = 7: 11