Question
āEconomics is the study of the administration of
scarce resources and the determinants of employment and income.ā Definition of Economics was given by:Solution
Lord Keynes defined economics as āthe study of the administration of scarce means and the determinants of employment and incomeā.
Pipe A can fill a tank in 12 hours, and Pipe B can fill it in 15 hours. Pipe C can empty the full tank in 20 hours. If all three pipes are opened togeth...
Two inlet pipes M and N alone can fill a tank in 10 hours and 12 hours respectively and an outlet pipe P alone can empty the whole tank in 8 hours. Firs...
Pipe 'X' and 'Y' can fill a tank in 1 hour and 1 hour 30 minutes respectively. 'X' is opened alone. After 18 minutes, 'X' is closed and 'Y' is opened. ...
Pipes 'A' and 'B' have the capacity to fill a tank in 12 hours and 15 hours, respectively. Conversely, pipe 'C' can drain the same tank in 20 hours. Ini...
A and B can fill a tank in 25 and 30 hours respectively. C empties it in āxā hours. With all three open, the tank is filled in 15 hours. Find āxļæ½...
- An inlet pipe fills a water tank in 50 minutes and an outlet pipe empties the tank in 75 minutes. How much time will both take to fill half the tank when o...
There was the leakage in the Oil container. If 10 litre of oil is leaked out per day then it would have lasted for 25 days and if the leakage was 16 lit...
Pipe āAā can fill a tank in 14 hours whereas pipe āBā can empty it in 28 hours. If both pipes are opened together while pipe āBā is closed a...
Pipe A fills a tank in 10 hr, Pipe B in 15 hr, and Pipe C empties in 30 hr. All open together. Time to fill?
Two inlet pipes, each with the same capacity, can fill an empty tank 'A' together in 20 minutes. There is also an outlet pipe that can empty 40% of the ...
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