Analyzing Population and Literacy Data for City D

The question asks us to find the percentage by which the number of literate males in City D is more than the number of literate females in City D. To answer this, we need to extract the relevant information for City D from the provided table and then perform the necessary calculations.

We are given the following information:

• Total population across all six cities = 1.5 crore (1,50,00,000)
• Total number of literate males across all six cities = 40 lakh (40,00,000)
• Total number of literate females across all six cities = 25 lakh (25,00,000)

The table shows the percentage distribution of these totals across the six cities (A to F). Let's look at the provided table:

Calculating Literate Males and Females in City D

From the table, for City D:

• Percentage of literate males in City D = 16% (out of total literate males)
• Percentage of literate females in City D = 16% (out of total literate females)

Now, we calculate the actual number of literate males in City D:

Number of literate males in City D = 16% of Total Literate Males

Number of literate males in City D $$= 0.16 \times 40,00,000$$

Number of literate males in City D $$= 6,40,000$$

Next, we calculate the actual number of literate females in City D:

Number of literate females in City D = 16% of Total Literate Females

Number of literate females in City D $$= 0.16 \times 25,00,000$$

Number of literate females in City D $$= 4,00,000$$

Calculating the Percentage Difference

We need to find out by what percentage the number of literate males of City D is more than the number of literate females of City D. The comparison is made with respect to the number of literate females in City D.

Difference between literate males and females in City D:

Difference $$= \text{Literate males in City D} - \text{Literate females in City D}$$

Difference $$= 6,40,000 - 4,00,000$$

Difference $$= 2,40,000$$

Now, we calculate the percentage increase (how much more the literate males are than the literate females):

Percentage increase $$= \frac{\text{Difference}}{\text{Number of literate females in City D}} \times 100$$

Percentage increase $$= \frac{2,40,000}{4,00,000} \times 100$$

Percentage increase $$= \frac{24}{40} \times 100$$

Percentage increase $$= \frac{3}{5} \times 100$$

Percentage increase $$= 0.6 \times 100$$

Percentage increase $$= 60\%$$

So, the number of literate males of City D is 60% more than the number of literate females of City D.

Revision Table: Data Interpretation Concepts

Additional Information: Understanding Percentages

A percentage is a way of expressing a number as a fraction of 100. The symbol '%' is used to indicate percentage. For example, 16% means 16 out of 100, or $\frac{16}{100}$.

When calculating a percentage of a total amount, you convert the percentage to a decimal (by dividing by 100) and then multiply by the total. For instance, 16% of 40 lakh is calculated as $0.16 \times 40,00,000$.

Calculating percentage difference requires careful identification of the base quantity (the number you are comparing against). In the question "A is what percentage more than B?", B is the base quantity. The difference (A - B) is calculated as a percentage of B.

These skills are fundamental for solving data interpretation questions involving percentages and ratios, common in quantitative aptitude tests.