Step 1: Let the number of people who don’t have health insurance be x. The number of people who have health insurance is 1.5x. So, the total number of people in the city is:
\[ x + 1.5x = 2.5x. \]
Step 2: The ratio of people with health insurance to the total number of people is:
\[ \frac{1.5x}{2.5x} = \frac{3}{5}. \]
Conclusion: The ratio is 3:5.
Arun’s present age in years is 40% of Barun’s. In another few years, Arun’s age will be half of Barun’s. By what percentage will Barun’s age increase during this period?
Arun’s present age in years is 40% of Barun’s. In another few years, Arun’s age will be half of Barun’s. By what percentage will Barun’s age increase during this period?