Calculating Difference in Male Students: Graduation vs Post-Graduation

The question asks us to find the difference between the number of male students in graduation courses (B.Sc. and B.A.) and the number of male students in post-graduation courses (M.A. and M.Sc.) based on the provided table data.

Calculating Male Students in Graduation Courses (B.Sc. + B.A.)

First, we need to find the number of male students in each graduation course and then sum them up.

• Male students in B.Sc.:

Total B.Sc. students = 400

Percentage of male students in B.Sc. = 65%

Number of male students in B.Sc. $= 400 \times \frac{65}{100} = 4 \times 65 = 260$

• Male students in B.A.:

Total B.A. students = 650

Percentage of male students in B.A. = 54%

Number of male students in B.A. $= 650 \times \frac{54}{100} = 6.5 \times 54 = 351$

Total male students in graduation courses (B.Sc. + B.A.) $= 260 + 351 = 611$

Calculating Male Students in Post-Graduation Courses (M.A. + M.Sc.)

Next, we find the number of male students in each post-graduation course and sum them up.

• Male students in M.A.:

Total M.A. students = 340

Percentage of male students in M.A. = 55%

Number of male students in M.A. $= 340 \times \frac{55}{100} = 3.4 \times 55 = 187$

• Male students in M.Sc.:

Total M.Sc. students = 280

Percentage of male students in M.Sc. = 75%

Number of male students in M.Sc. $= 280 \times \frac{75}{100} = 280 \times \frac{3}{4} = 70 \times 3 = 210$

Total male students in post-graduation courses (M.A. + M.Sc.) $= 187 + 210 = 397$

Finding the Difference

Finally, we calculate the difference between the total male students in graduation and the total male students in post-graduation.

Difference = (Total male students in Graduation) - (Total male students in Post-Graduation)

Difference $= 611 - 397 = 214$

The difference between the male students in graduation (BSc + BA) and male students of post-graduation (MA + MSc) is 214.

Revision Table: Key Calculations

Additional Information: Data Interpretation Tips

Data interpretation questions require careful reading of the data presented in tables, charts, or graphs. Here are some tips:

• Understand the question completely before starting calculations. Identify exactly what needs to be calculated or compared.
• Read the table/chart headings and labels carefully to understand what the numbers represent.
• Pay attention to units (e.g., percentage, absolute numbers, ratio).
• Break down the problem into smaller, manageable steps. Calculate individual values before finding sums, differences, ratios, etc.
• Be careful with percentage calculations. Remember that a percentage is "out of 100".
• Organize your calculations neatly to avoid errors, especially in multi-step problems.
• Cross-check your calculations if time permits.