Question 135

The population of a town is 15000. If the number of males increases by 8% and that of females by 10%, then the population would increase to 16300. Find the number of females in the town.

Solution

let the number of males be m and number of females be f

m + f = 15000

now males are increased by 8% and females by 10 %

1.08 m + 1.1 f = 16300

solving both the equations

f = 5000

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