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Let the total work be W units. Work done by A and B together in 8 days = 8 × (W/20) = 2W/5 units Remaining work = W - 2W/5 = 3W/5 units A completes 3W/5 units in 16 days, so A’s 1-day work = (3W/5) / 16 = 3W/80 units A and B together complete W/20 units per day, so B’s 1-day work = (W/20 - 3W/80) = W/80 units Therefore, B can complete the entire work in 80 days.
Tap A and Tap B fill a drum of volume 494 liters in 19 minutes. If their efficiencies are in the ratio x:y respectively and B alone takes to fill the ci...
In what time would a cistern be filled by three pipes whose diameter are 2cm, 2*2/3cm, 4cm running together, when the largest pipe alone fill the cister...
Tap A can fill a tank in 10 hours. Tap B can fill 12.5% part of the same tank in 5 hours, whereas Tap C can alone empty a tank in ‘x’ hours. 2/5 par...
Pipe ‘X’ and pipe ‘Y’ together can fill an empty tank in 24 hours while pipe ‘Y’ and pipe ‘Z’ together take 15 hours to fill the same ta...
Pipe A can fill half of the tank in 6 hrs 2 min- Pipe B can fill the same tank completely in 18 hrs 5 min while pipe C can empty the fully filled tank i...
Two pipes A and B can fill a tank in 15 hours and 25 hours respectively. If both the pipes are opened simultaneously, in how much time the tank will be ...
Two inlet pipes M and N alone can fill a tank in 12 hours and 16 hours respectively and an outlet pipe P alone can empty the whole tank in 8 hours. Firs...
Two inlet pipes 'A' and 'B' can fill an empty tank in 60 minutes and 120 minutes, respectively. Another outlet pipe 'C' can empty the tank in 240 minute...
Tap A can fill a tank in 15 hours. Tap B can fill 12.5% part of the same tank in 2 hours, whereas Tap C can alone empty a tank in ‘x’ hours. 5/8 par...
Pipe X can empty a completely filled tank in 60 hours. Pipe Y and X together can fill an empty tank completely in (z+6) hours. The efficiency of pipe Y ...
