Correct option is A
Given:
A pie chart representing the percentage of banks in 5 cities.
Difference between total banks in N = 30%, P = 15%, Q = 25%
Formula Used:
Ratio =
Solution:
Since the required ratio is between values from the same pie chart, we can directly use their percentage values.
According to the data from the chart, the values form the ratio:
Ratio =
Using the respective percentages, the ratio simplifies directly to 3 : 4.
Final Answer
So the correct answer is (a)









