Question
Pipes P and Q can fill a tank in 12 hours and 15 hours
respectively, while a third pipe C can empty the tank in 24 hours. If all three pipes are opened simultaneously at 4:00 a.m., at what time will the tank be 65% full?Solution
Let the capacity of the tank be 120 units
Efficiency of pipe ‘A’ = 120/12 = 10 units/hour
Efficiency of pipe ‘B’ = 120/15 = 8 units/hour
Efficiency of pipe ‘C’ = 120/24 = 5 units/hour
Tank filled in 1 hour = 10 + 8 – 5 = 13 units
Time taken to fill 65% of the tank = 0.65 × 120/13 = 6 hours
Therefore, tank will get filled at (4 + 6) = 10 a.m.
Which of the following best describes Bertrand competition?
Type II error occurs when
If you have found the percentage of the value of sales accounted for by the four largest firms in an industry, you have found the
At point A, inflation is equal to the underlying rate of inflation and output is at the level of output consistent with the equilibrium unemployment ra...
When the price of a commodity decreases, and its demand curve forms a rectangular hyperbola, what happens to the total expenditure on that commodity?
When exchange rate in terms of domestic currency rises
Suppose the reserve ratio is 0.2, Currency in Circulation is Rs.100, Deposits are Rs.400 and Excess Reserves Rs.10 , then calculate the money multiplier
An economy’s output in year 0 is 10 percent below its maximum potential output and the maximum potential output steadily increases at the rate of 5 pe...
Which of the following test is used for Multicollinearity?
The "Tragedy of the Commons" is most directly associated with the problem of providing:
Relevant for Exams:
