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Use the formula sum = Diff. in interest *100/Times*Diff. in rates 
x = 0.25% (on solving)
A tank is filled by two pipes A and B in 12 minutes and 15 minutes, respectively. Another pipe C can empty the tank in 10 minutes. If all three pipes ar...
Tap A and Tap B fill a drum of volume 357 liters in 17 minutes. If their efficiencies are in the ratio x:y respectively and B alone takes to fill the ci...
Two pipes A and B are opened together to fill a tank. Both the pipes fill the tank in time “x”. If A separately takes 8 minute more time than “x�...
Two pipes can fill a tank in 12 and 10 minutes respectively. A waste pipe is used to empty the tank. All three pipes working together can fill the tank ...
A tank has two pipes, Pipe A and Pipe B. Pipe A fills the tank in 10 hours, while Pipe B fills it in 15 hours. Pipe C can empty the tank in 30 hours. If...
Tap ‘A’ and tap ‘B’ can fill a tank in 40 hours and 36 hours, respectively. If both taps are opened together, then find the time after which tap...
Pipe A alone fill the tank in x hours and Pipe B alone fill the tank in (x – 10) hours. If the efficiency of pipe B is triple of pipe A and pipe A...
Pipe ‘A’ can fill a tank in 40 hours whereas leak ‘A’ can empty it in 50 hours. If they both operate along with pipe ‘B’, then the given tan...
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...
Pipe ‘A’ can fill a tank in 22 hours while pipe ‘B’ can empty it in 25 hours. They were operated on alternate hours starting with pipe ‘A’. ...
