17. ____ income is total income of the country divided by total population. ( )
A) Gross
B) Average
C) Net
D) None
18. The average income is also called ____ income.
A) GNP
B) GDP
C) PCI
D) None
19. Ten years back, India came in the category of ___ income countries. ( )
A) average
B) high
C) medium
D) low
20. The rich countries are generally called countries. ( )
A) developed
B) underdeveloped
C) developing
D) none
21. While averages are useful comparison, they also hide ____
A) disparities
B) similarities
C) equalities
D) none