41.
Passive factor of production is

42.
Under law of demand

43.
For inferior commodities, income effect is

44.
Mixed economy means an economy where

45.
When total utility becomes maximum, then marginal utility will be

46.
Utility means

47.
Marginal utility is equal to average utility at that time when average utility is

48.
Which one of the following is the task of the Planning Commission?

49.
At the point of satiety, marginal utility is

50.
Total utility of a commodity is measured by which price of that commodity?