find out the total population of a town if the ratio between the literate and illiterate of the inhabitants of the town is 2:5.the number of illiterate exceeds the number of literates by 9000
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let illiterate be x , literate be y
x= y +9000
y/x = 2/5
5y = 2x
y= 2x/5
substitute
x= y +9000
x= 2x/5 +9000
3x/5 = 9000
X= 5×9000/3
= 15000
Y = 6000
x= y +9000
y/x = 2/5
5y = 2x
y= 2x/5
substitute
x= y +9000
x= 2x/5 +9000
3x/5 = 9000
X= 5×9000/3
= 15000
Y = 6000
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