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Question

5/9 of the population of a town are males. 60% of the males are married to females of the same population. find the % of unmarried females in the total population

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Solution

Let the total population of the town be xIt is given that 59 of the total population are males.So the number of males in the town are, 59 of x=59xSo the number of females in the town are, x-59x=49xThe number of married males is 60% of 59x.This implies that, 60100×59x=13xSo the number of married females also equals 13x Thus the number of unmarried females are, 49x-13x=19xThis implies that the percentage of unmarried females is, 19xx×100 %=1009%=11.11%

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