SOLUTION: In a town of 360 people, 80%can read and write. 90%of the males alone can read and write, but only 180 of the females can read and write. How many females are in the town?

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Question 70045: In a town of 360 people, 80%can read and write. 90%of the males alone can read and write, but only 180 of the females can read and write. How many females are in the town?
Answer by ptaylor(1894) About Me  (Show Source):
You can put this solution on YOUR website!

Let x=number of females
Then 360-x=number of males
And 0.90(360-x)=number of males that can read and write
0.80(360)= number of males and females that can read and write
Number of males that can read and write + number of females that can read and write equals 0.80(360). So our equation to solve is:
0.9(360-x)+180=0.8(360)
324-0.9x+180=288
504-0.9x=288 subtract 504 from both sides
-0.9x=288-504
-0.9x=-216 divide both sides by -0.9
x=240-------------------------------------number of females
360-x=360-240=120----------------------------number of males
ck
90% of the males = 0.9(120)=108
108+180=288
80% of 360=288

Hope this helps----ptaylor