In village B, the total population is divided into literate and illiterate groups. The percentage of literate population is 72\%, with 75\% of them being male. Among the illiterate population, 75\% are male as well. Find the ratio of the total male population to the total female population in village B.

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**Solution:**

1. Assume the total population of village B as $100x$.

2. Calculate the total literate population:
   - Literate population = $72\%$ of $100x = 72x$

3. Calculate the total illiterate population:
   - Illiterate population = $100x - 72x = 28x$

4. Calculate the literate male population:
   - Literate males = $75\%$ of $72x = 54x$

5. Calculate the literate female population:
   - Literate females = $72x - 54x = 18x$

6. Calculate the illiterate male population:
   - Illiterate males = $75\%$ of $28x = 21x$

7. Calculate the illiterate female population:
   - Illiterate females = $28x - 21x = 7x$

8. Total male population = literate males + illiterate males = $54x + 21x = 75x$

9. Total female population = literate females + illiterate females = $18x + 7x = 25x$

10. Required ratio of total male to total female population:
    $$\frac{75x}{25x} = 3 : 1$$

**Answer:** $3 : 1$

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