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Tutors Answer Your Questions about Rate-of-work-word-problems (FREE)
Question 665596: Tom, Dick, and Harry begin working together to dig a trench. Tom works twice as fast as Dick and one-third as fast as Harry. After one hour of work, Tom is called away. After Tom leaves, the other two finish the job in three hours. How long would it have taken Harry to dig the trench alone?
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 666040: Betty paints twice as fast as dan. Working together, dan and betty can paint 2400 sq. ft. in 4 hours. Another employee sue joined their painting team. Working together dan betty and sue can paint 3600 sq. ft. in 3 hours
If sue works alone how many sq ft can she paint in 4 hours and 27 minutes
Click here to see answer by vleith(2983) |
Question 666084: Math word probelm:
Andy can paint a room in 4 hours, Betty in 6 hours and Chuck in 8 hours. If Betty and Chuck work together for 1 hour and then Andy joins them and they all work together until the room is finished, how long did Andy work?
Click here to see answer by ewatrrr(24785)  |
Question 666104: A painter can paint a certain house in 12 hours by herself but it takes her helper 15 hours to do the same job himself. the painter starts the job alone but her helper her 5 hours later. How long will it take the two of them together to finish painting the house?
Click here to see answer by ewatrrr(24785)  |
Question 667151: a contractor estimated that 20 men can complete a tank in 10 days. After working for three days 5 men went to home and not come back to work again, so in how many days they will complete the remaining work?
Click here to see answer by vleith(2983) |
Question 667792: "Work" word problem: Painting a House
Donald and Ken are painting a house this summer. Donald worked alone for 9 days. The next day Ken joined Donald to work on the house. Working together, they finished the house in 6 more days. If Ken could have painted the entire house in 22 days, how many days would it have taken Donald to paint the house alone. round the answer to the nearest whole number, if necessary.
Possible answers are: a) 21 b) 25 c) 30 d) 12
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 670509: Two pipes are attached to a 540 gal tank. One pipe can fill the tank in 10 hours. The other can fill the tank in 12 hours. Assume the tank is empty, how long will it take to fill the tank if both pipes are used?
Click here to see answer by mananth(16946)  |
Question 671603: A restaurant has a fixed costs of 137.50 per day and an average unit cost $4.75 for each meal served. If a typical meal cost $ 6 , how many customers must eat at the restuant each day for the owner to break even
Click here to see answer by mananth(16946)  |
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