Best Answer Explained in Below-:

To find the percentage of the poor population that is illiterate, you can use the information provided:40% of the people are illiterate.60% of the people are poor.Among the rich, 10% are illiterate.Let's assume there are 100 people in the city for ease of calculation.Out of 100 people:60 are poor.40 are not poor (since 100 - 60 = 40 are not poor).Now, let's find out how many of the poor people are illiterate.40% of the people are illiterate, which means 40% of 100 = 40 people are illiterate in total.Now, let's find out how many of the rich people are illiterate.Among the rich (40 people), 10% are illiterate, which means 10% of 40 = 4 people are illiterate among the rich.Now, let's find out how many of the poor people are illiterate:Total illiterate people - Illiterate rich people = Illiterate poor people 40 - 4 = 36So, among the poor population, 36 people are illiterate.Now, calculate the percentage of illiterate people among the poor:(illiterate poor people / total poor people) * 100 = (36 / 60) * 100 = 60%Therefore, 60% of the poor population is illiterate. The answer is 60%.