To find the number of literate females, we first need to calculate the total number of literate people in the city.
The total population of the city is 300,000, and 50% of the population is literate. So the number of literate people in the city is:
300,000 * 0.5 = 150,000
Now, we need to find the number of literate males. We know that 70% of the males are literate. The total number of males in the city is 180,000, so the number of literate males is:
180,000 * 0.7 = 126,000
To find the number of literate females, we subtract the number of literate males from the total number of literate people:
150,000 - 126,000 = 24,000
Therefore, the number of literate females is 24,000.