Correct Answer: 9 crores

Solution : Interest on loans is 17.5% which amounts = 3.15 crores
Total expenditure = $\frac{3.15}{17.5} × 100$ = 18 crores
Now,
Expenditure on salary = 20
Expenditure on taxes = 10
Expenditure on infrastructure = 20
Total = 20 + 10 + 20 = 50
Expenditure on salary, taxes and infrastructure = $\frac{\text{salary+ taxes+ infrastructure}}{100}\times$ total expenditure
= $\frac{50}{100}\times18 = 9$
Hence, the correct answer is 9 crores.