Question

give one measure to compare different countries and States

Answer 1

Countries have different populations, so we must compare the average income of the country which is got by dividing the total income of the country by its total population, etc. However, for comparison between countries, total income is not such a useful measure.

Answer 2

we can compare country or states on various subjects but the important subjects on which they are compared are:
1. Per Capital Income
2. Literacy Rate
3. Infant Mortality Rate
4. Net Attandance Ratio
5. Population
6. Cleanliness ( as in Swacch Sarvekhan Programme)
7. Poverty Line
8. Pollution Level
9. Good connection of roads and railways
10. Death Rate