Sujet: working together liste de sujets
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33 articles trouvés pour ce sujet.

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	Filling a tank using two pipes		2006-11-11
		Tracey pose la question : One pipe can fill a tank in 8 minutes and a second can fill it in 12 minutes. If the tank is empty, how long will it take both pipes to fill it. Stephen La Rocque and Penny Nom lui répond.
	Filling a pool with two hoses		2017-02-20
		Charlene pose la question : A large hose will fill a pool in 40 minutes while it takes a smaller hose 60 minutes to fill the same pool. The same pool takes 80 minutes to drain if the drain is open. Suppose one day both the hoses are turned on, but by accident the drain was left open. How long would it take to fill the pool that day? Penny Nom lui répond.
	Filling a tub		2015-01-02
		Mr pose la question : The cold tap can fill a bath in 5minutes,the hot tap in 15,and the waste pipe empty the full bath in 10 minutes. All three are fully open for 2 minutes,after which the waste-pipe is closed. How much longer will it take to fill the bath? Penny Nom lui répond.
	Working together		2011-12-30
		Kenneth pose la question : 15 workers can finish a job in 7 days. If I want to find the number of days 21 workers can finish the job, the calculation becomes 1/(21 workers) X 15 workers X 7 days. If the 21 and 15 are reduced to 7 and 5, by dividing 21 and 15 by 3, the calculation becomes 1/7 X 5 X 7 days, what do these two reduced terms (7 and 5) indicate or represent? Do they represent 5 workers and 7 workers, as in (1/7 worker) X 5 workers X 7 days = 5 days? I thank you for your reply. Penny Nom lui répond.
	Working together		2010-05-04
		Felicia pose la question : Sarah takes 3 hours longer to paint a floor than it takes Kate. when they work together it takes 2 hours. How long would each take to do the job alone? Penny Nom lui répond.
	Mixing drinks		2009-05-02
		samantha pose la question : If Steven can mix 20 drinks in 5 minutes, Sue can mix 20 drinks in 10 minutes and Jack can mix 20 drinks in 15 minutes. How much time will it take all 3of them working together to mix the 20 drinks? Stephen La Rocque and Claude Tardif lui répond.
	Working together		2009-03-04
		bob pose la question : T=(AB)/(A+B) using this formula t= time a,b repersenting each indivual person i mow my lawn and it takes me 30 minutes my friend joe it takes 3 times as long,how long would it takes us together using this formula Harley Weston lui répond.
	Three people working in pairs		2009-02-21
		bevaz pose la question : A and B can together do a piece of work in 6 days, B and C together in 20 days and C and A in 7.5 days. how long will they require separately for the work? Penny Nom lui répond.
	Filling a tank with 2 taps		2008-11-10
		Murray pose la question : 2 taps turned on together can fill a tank in 15 minutes. By themselves, one takes 16 minutes longer than the other to fill the tank.Find the time taken to fill the tank by each tap on it's own. Penny Nom and Victoria West lui répond.
	Working together but one person starts first		2008-09-30
		David pose la question : Della can scrape the barnacles from a 70 ft. yacht in 10 hours using an electric barnacle scraper. Don can do the same job in 15 hours using a manual scraper. If Della started helping Don three hours after Don started scraping, how long will it take to scrape the entire boat? Penny Nom lui répond.
	Working together		2008-09-22
		Wade pose la question : My daughter and I are having problems with this question: Maggie can mow the lawn in 6 hrs. If her sister, Julie, helps her, it only take 2 hrs. How long does it take Julie to mow the lawn alone. Penny Nom lui répond.
	Filling a cistern with two pipes		2008-05-14
		ramya pose la question : two pipes P and Q would fil a cistern in 30 mins and 40 mins respectively. both pipes being opened. find when the first pipe be turned off so that the cistern may be just filled in 20 mins. options: 1. after 10 mins 2. after 15 mins 3. after 20 mins 4. after 25 mins Stephen La Rocque lui répond.
	Working together		2008-05-12
		frustrated pose la question : Working alone, Colleen can paint a house in 2 hours less than James. working together, they can paint the house in 10 hours. How long would it take James to paint the house by himself? Collen: 1/x-2 times 10 James: 1/x times 10 10/x-2 + 10/x = 1 10x + 10x -20 = x(x-2) 0= x^2 -22x + 20 They have the answer as 21 hours. From my previous work as you see, how are they getting 21 hours? Penny Nom lui répond.
	Working together		2008-04-26
		Joanna pose la question : If 8 men took 15 days to paint a building . How many more men are needed to paint the building in 6 days ? Stephen La Rocque lui répond.
	It takes Mark 3 hours to paint a picture		2008-02-27
		Suzanne pose la question : If Mark takes 3 hours to paint a picture and it takes Henry three times as long to paint the same picture, then: How many pictures can each paint in 10 hours? How many pictures can they paint together in 10hours? Penny Nom lui répond.
	9 employees require 15 days to complete a task		2008-02-24
		Alyssa pose la question : if 9 employees require 15 days to complete a task, how long would it take to do the same work if there were 3 additional employees? Penny Nom lui répond.
	Three workers working together		2007-12-18
		Rajesh pose la question : Worker A can do a piece of work in 15 days, worker B in 12 days, and worker C in 10 days. Worker A works 2 days, worker B 3 days, and worker C 3 days. In what time can worker A and worker B finish the job by working together? Penny Nom lui répond.
	How long was she be raking leaves?		2007-10-05
		Skylar pose la question : A family is raking leaves. Betsy fills 3 bags to every 2 bags the Meri fill. After a while, Jim joins them. He fills 3 bags to every 2 bags that Betsy fills, but he only works half as long. When finished, they have completely filled 58 bags. If Meri takes 6 minutes to fill one bag, how long was she raking leaves? Chris Langdon lui répond.
	Peter and Charles mow a lawn		2007-09-27
		Nancy pose la question : Peter takes 15 minutes longer to mow the lawn by himself than Charles does. Together they can mow the lawn in 18 minutes. How long would it take Charles to mow the lawn by himself? Stephen La Rocque lui répond.
	12 men can complete a work in 8 days		2007-09-23
		farah pose la question : 12 men can complete a work in 8 days. 3 days after they started working, 3 more men joined. In how many days will all of them together complete the remaining work. Stephen La Rocque lui répond.
	Working together		2007-09-21
		farah pose la question : A can do a piece of work in 10 days while B can do the same work in 15 days . They work together for 5 days and the rest of the work is done by C in 2 days . If they get 400$ for the whole work , what should be A's share. Harley Weston lui répond.
	If all of them work together, ...		2006-07-27
		Kakron pose la question : Pipe A can fill in 20 mins and pipe B can fill in 30 mins and pipe C can empty the same in 40 mins. If all of them work together, find the time taken to fill the tank? Stephen La Rocque lui répond.
	Painting a house		2006-06-28
		A student pose la question : If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together? Stephen La Rocque and Penny Nom lui répond.
	Worker A can do a piece of work in 15 days,...		2006-03-23
		Kenneth pose la question : Worker A can do a piece of work in 15 days, worker B in 12 days, and worker C in 10 days. Worker A works 2 days, worker B 3 days, and worker C 3 days. In what time can worker A and worker B finish the job by working together? Penny Nom lui répond.
	One worker can perform a certain job in 8 days		2006-02-28
		Kenneth pose la question : One worker can perform a certain job in 8 days, another worker in 10 days and a third worker in 12 days. In what time can all three perform it working together? Stephen La Rocque lui répond.
	Snow in the driveway		2004-04-09
		Patricia pose la question : Following a severe snowstorm, Ken and Bettina Reeves must clear their driveway and sidewalk. Ken can clear the snow by himself in 4 hours, and Bettina can clear the snow by herself in 6 hours. After Bettina has been working for 3 hours, Ken is able to join her. How much longer will it take them working together to remove the rest of the snow? Penny Nom lui répond.
	Filling A swimming pool		2002-11-21
		Sarah pose la question : A swimming pool is being filled by three pumps. Alone pump A would take 6 hours, pump B would take 3 hours, and pump C would take 3 hours. If all three pumps are used to fill the pool, what fraction of the process is pump A. Penny Nom lui répond.
	Painting a car		2002-09-24
		A student pose la question : Dan can paint a car in 4 hours. Luke can pain the same car in 6 hours. Working together, how long would it take them to pain the same car? Penny Nom lui répond.
	Making toys		2001-12-17
		Karen pose la question : Jonathan and Morgan are two of Santa's elves. Jonathan can make a toy in eleven hours. Morgan can make the same toy in nine hours. How long it take for both Jonathan and Morgan to make the toy if they were working together? Claude Tardif lui répond.
	Joan and Jan work together		2001-09-26
		Karyna pose la question : Joan and Jan work together and they set up a bandstand in just 24 minutes, but if Joan does it by herself she takes 1 hour. How long would it take Jan to set up the bandstand by himself? Claude Tardif lui répond.
	Typing a project		2001-05-01
		Tom pose la question : Two students have to type a project. One can do it in 2 hours. It would take the other student three hours. They have 2 type writers. How fast can they finish by working simultaneously? Claude Tardif lui répond.
	Working together		2001-04-26
		Stephanie pose la question : Tom takes 10 hours to piant a mural on the wall of Evergreen School. Carol takes 6 hours to do the same job. If they work together, how long will it take them to paint the mural? Claude Tardif and Penny Nom lui répond.
	A Car Wash		1998-04-04
		Lisa Gotimer-Strolla pose la question : Al washes a car in six hours. Fred washes a car in eight hours. How long will it take them to wash a car together? Harley Weston lui répond.

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