Question : The Liquidity Preference Theory of Interest was propounded by : 

Option 1: J. M. Keynes

Option 2: David Ricardo 

Option 3: Alfred Marshall 

Option 4: Adam Smith 

Question : Ryotwari system of revenue collection in India, introduced by the British, was based on the_______.

Option 1: Smith's theory of rent

Option 2: Ricardian theory of rent

Option 3: Malthusian theory of rent

Option 4: Marx's theory of rent

Question : "The General Equilibrium Analysis" was developed by:

Option 1: Alfred Marshall

Option 2: David Ricardo

Option 3: Marie-Esprit-Léon Walras

Option 4: Adam Smith

Question : Charles Darwin, the famous evolutionist, proposed his theory in which one of his books?

Option 1: The families of flowering plant

Option 2: The origin of species

Option 3: The life on Earth

Option 4: The story of the living world

Question : Direction: Joan's age is 42, and Kelvin's age is 26. How many years ago was Kelvin's age half of Joan's age?

Option 1: 6 years

Option 2: 4 years

Option 3: 10 years

Option 4: 8 years