- Step 1: Identify Salaries' percentage. Salaries = 50%, Rs. 25,000.
- Step 2: Calculate total. $50% \times \text{Total} = 25,000 \implies 0.5 \times \text{Total} = 25,000 \implies \text{Total} = \frac{25,000}{0.5} = 50,000$.
- Step 3: Verify. Rent = $30% \times 50,000 = 15,000$, Utilities = $20% \times 50,000 = 10,000$. Total = $25,000 + 15,000 + 10,000 = 50,000$.
- Step 4: Compare with options. Options: (1) 40,000, (2) 45,000, (3) 50,000, (4) 55,000. Matches 50,000.
- Step 5: Conclusion. Option (3) is correct.