The faucet alone can fill the sink in 6 minutes, while it takes 8 minutes to empty it with the drain. A sink is ¼ full when both the faucet and the drain are opened.If the pool is half full to begin with, how long will it take to fill it from there if both pipes are open? It can be emptied in 15 hours with the outlet pipe. It takes 10 hours to fill a pool with the inlet pipe.If the sink is full and both the faucet and the drain are open, how long will it take to empty the sink? It takes only 3 minutes to empty the sink when the drain is open. A sink can be filled from the faucet in 5 minutes.How long would it take to fill the tank if both pipes were open? It takes twice that long for the outlet pipe to empty the tank. A water tank can be filled by an inlet pipe in 8 hours.If two people working together can do a job in 3 hours, how long would it take the faster person to do the same job if one of them is 3 times as fast as the other?.If one of them works twice as fast as the other, how long would it take the slower person, working alone, to do the job? Two people working together can complete a job in 6 hours.If they work together, how long will it take them to complete the job? It takes his wife JoAnn only 8 hours to do the same job. Tim can finish a certain job in 10 hours.If Sam can do a certain job in 3 days, while it would take Fred 6 days to do the same job, how long would it take them, working together, to complete the job?.If the carpenter himself could do the work alone in 5 days, how long would the assistant take to do the work alone? A carpenter and his assistant can do a piece of work in 3.75 days.If an apprentice can do a piece of work in 24 days, and apprentice and instructor together can do it in 6 days, how long would it take the instructor to do the work alone?.How long would it take both pipes together to fill the tank?įor Questions 9 to 20, find and solve the equation describing the relationship. A cistern can be filled by one pipe in 20 minutes and by another in 30 minutes.How long would it take them to do the work together? Raj can do a piece of work in 4 days and Rubi can do it in half the time.How long will it take them to do it working together? Working alone, Maryam can do a piece of work in 3 days that Noor can do in 4 days and Elana can do in 5 days.How long would it take each to do the job working alone? Working together, they can do the job in 3 hours. Working alone, it takes John 8 hours longer than Carlos to do a job.If Yousef can do a piece of work alone in 6 days, and Bridgit can do it alone in 4 days, how long will it take the two to complete the job working together?.How much time would each require if they worked alone? The two working together can complete the job in 1.2 hours. Jack can wash and wax the family car in one hour less than it would take Bob.If only the larger pipe is open, how many hours are required to fill the pool? When both pipes are open, the pool is filled in three hours and forty-five minutes. Of two inlet pipes, the smaller pipe takes four hours longer than the larger pipe to fill a pool.How much time would each require working alone? Working together, they can complete the job in 2 hours and 24 minutes. Bill’s father can paint a room in 2 hours less than it would take Bill to paint it. \textġ7.5 min or 17 min 30 sec is the solution Questionsįor Questions 1 to 8, write the formula defining the relation. The equation used to solve problems of this type is one of reciprocals. If it takes Felicia 4 hours to paint a room and her daughter Katy 12 hours to paint the same room, then working together, they could paint the room in 3 hours.
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