Question

In a village the ratio between the number of illiterates and literates is the same as the ratio between the number of literates and the population of the village. if there are only 2 illiterates amongst all the 11250 villagers how many villagers are literate

Answer 1

as per given in question that
no. of illiterates : no of literates :: no. of literates : no. of villagers
therefore total population of village = illiterates +literates
so 11250=literates+2
literates=
$11250 - 2 \\ 11248$

Answer 2

illiterates:literate =literate: total population
illiterates/literate=literate/population
2/literate = literate/11250
2×11250=literate^2
22500=literate^2
√22500=literate^2
150=no of literates in the village