find out the total population of a town if the ratio between the literate and the illiterate of the in habitant of the town is 2:5 the number of illirate exceeds the number of literate by 9000
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let the illiterate be 5x
the literate be 2x
ATQ
5x-2x = 9000
3x = 9000
x = 3000
so literates = 2×3000
=6000
illierates = 5×3000
= 15000
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