Question
Aβ and βBβ together can complete a work in 20 days
while βAβ takes 25 days to complete the same work alone. If βCβ is 60% more efficient than βBβ, then find the time taken by βCβ alone to complete the whole work.Solution
Let the total work = 100 units Efficiency of (A + B) = 100/20 = 5 units/day Efficiency of βAβ = 100/25 = 4 unit/day Therefore, efficiency of βBβ = 5 β 4 = 1 units/day Efficiency of βCβ = 1.6 Γ 1 = 1.6 units/day Required time taken = 100/1.6 = 62.5 days
Two pipes A and B can fill a tank in 24 min and 32 min respectively. If both the pipes are opened simultaneously, after how much time B should be closed...
Β There are 16 taps which are fitted in a tank .In which some are inlet pipes and some are Outlet pipes .Each inlet tap has the efficiency to fill the ...
Pipe 'A' fills half tank in 25 minutes. Pipe 'B' is 3 times as efficient. What percentage of the tank is filled by both in 10 minutes?
Pipe ‘A’ takes 15 minutes to fill a tank. Pipe ‘B’ takes 20 minutes to empty the same tank. If pipe ‘B’ is opened 12...
Pipe 'A' takes 18 minutes to fill half the tank. Pipe 'B' is 3 times as efficient. What percentage of the tank will both fill in 9 minutes?
Pipe A and Pipe B together can fill the tank in 10 hours. The capacity of the pipe A is 30% of the capacity of the pipe B. How much time will pipe B alo...
Pipe βAβ takes 10 minutes to fill a tank. Pipe βBβ takes 20 minutes to empty the same tank. If pipe βBβ is opened 5 minutes after pipe βAοΏ½...
Pipe A and B can fill the pool in 38 minutes and 19 minutes, respectively. Pipe C can empty half filled pool in 38 minutes. If all the pipes are opened ...
Pipe A fills a cistern in 6 hours, but pipe B can drain the full cistern in 9 hours. If both pipes operate together, how long will it take to fill the c...
Two pipes P1 and P2 can fill a cistern in 12 minutes and 15 minutes respectively. These pipes are opened alternately for 1 minute each, beginning with p...
