Question
The book, āAn Enquiry into the Nature and Causes of
the Wealth of Nationsā, (1776) defined Economics as:Solution
Adam Smith, the father of modern Economics, in his book entitled an Enquiry into the Nature and Causes of the Wealth of Nations (1776) defined Economics as a study of wealth. According to him, the subject matter of Economics is the study of how wealth is produced and consumed.
Pipe āAā can fill a tank in 10 hours while pipe āBā can empty it in 12 hours. They were operated on alternate hours starting with pipe āAā. ...
Two inlet pipes 'A' and 'B' can fill an empty tank in 36 minutes and 48 minutes, respectively. Another outlet pipe 'C' can empty the tank in 144 minutes...
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An inlet can fill an empty tank in 7 hours whereas an outlet pipe can empty it in 14 hours. If (N - 1) such outlet pipes having same efficiency and (N +...
Pipes 'E' and 'F' can fill a tank in 20 and 25 minutes respectively. Both are opened together. A leak develops after half of the tank is filled, which r...
Pipe 'A' takes 10 minutes to fill half the tank. Pipe 'B' is 2 times more efficient than pipe 'A'. Find % of tank filled in 5 minutes by both.
Two pipes P and Q can fill tank A in 36 minutes and 72 minutes respectively and empty pipe M can empty the tank in 54 minutes. Tank A has the capacity o...
An inlet pipe can fill an empty tank in 36 minutes whereas an outlet pipe can empty the fully filled tank in 54 minutes. Find the time taken by both the...
Pipe A alone fill the tank in x hours and Pipe B alone fill the tank in (x – 6) hours. If the efficiency of pipe B is double of pipe A and pipe A ...
Two pipes M and N can fill a tank in 20 hours and 30 hours respectively. The pipes were opened together, but pipe N stopped working after sometime and t...
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