The total urban population of State D is what percentage of the total population of State B?
Answer: B
First, find the urban population of State D.
Rural population % for State D = 55%. Therefore, Urban population % = 100% - 55% = 45%.
Total population of State D = 25 million.
Urban Population of D = 45% of 25 million = 0.45 * 25 = 11.25 million.
Total population of State B = 25 million.
Required Percentage = \(\frac{\text{Urban Pop. D}}{\text{Total Pop. B}} \times 100 = \frac{11.25}{25} \times 100 = 0.45 \times 100 = 45\)%.