- The infant mortality rate in Jharkhand is 11.3 per 1000 births. This means for every 1000 children born, 11.3 children die.
- The number of deaths is given as 452. Using the formula:
\[ \text{Number of deaths} = \frac{11.3}{1000} \times \text{Total number of births} \]
Let the total number of births be x. Since the number of deaths is 452:
\[ 452 = \frac{11.3}{1000} \times x \]
Solving for x:
\[ x = \frac{452 \times 1000}{11.3} \] \[ x = \frac{452000}{11.3} = 40,000 \]
Thus, the total number of births is 40,000.
Conclusion: The correct answer is (d) 40,000.