Questions on Word Problems: Rate of work, PAINTING, Pool Filling answered by real tutors!

Tutors Answer Your Questions about Rate-of-work-word-problems (FREE)

Question 891169: A and B are two pumps. A fills a water tank in 9 minutes and B fills it in 12 minutes .B started work after a few minutes of starting of A and they together filled the tank in 4 minutes. then find when did B start work after A
Click here to see answer by Edwin McCravy(20054)

Question 891131: A cistern can be filled by two pipes. The small pipe will take 24 minutes longer than the bigger pipe to fill the cistern alone.The small pipe alone will take 32 minutes longer to fill the cistern than when the two pipes are working together. how long will it take the bigger pipe to fill the cistern alone??
Click here to see answer by josmiceli(19441)

Question 891221: Help me solve this.
Kevin takes 40mins to mow his lawn alone. But when Jose and Kevin mow the lawn together it takes 15mins. How long will it take Jose to mow the lawn by himself.
Click here to see answer by josgarithmetic(39614)

Question 891406: one gas pump fills a tank 2 times as fast as another gas pump. if the pumps work together, they fill the gas tank in 18 minuites. How long does it take each pump working alone to fill the tank?
Click here to see answer by josgarithmetic(39614)

Question 891492: A sink has two faucets: one for hot water and one for cold water. The sink can be filled by a cold water faucet in 4.8 minutes. If both faucets are open, the sink is filled in 3.9 minutes. How long does it take to fill the sink with just the hot water faucet open?
Click here to see answer by richwmiller(17219)

Question 377340: A faucet can fill the sink in 3 minutes. A 2nd faucet can fill the same sink in 6 minutes. The drain leaks so that it empties the sink in 4 minutes. If the drain is closed and the 2 faucets are open how long will it take to fill the sink?
Click here to see answer by richwmiller(17219)

Question 891494: It takes 9 hours to fill a pool with the inlet pipe. It can be emptied in 12 hours with the outlet pipe. If the pool is 1/2 full to begin with, how long will it take to fill it from there if both pipes are open?
Click here to see answer by richwmiller(17219)

Question 891568: Charlie can paint a house in 16 hours. He hires a partner so that working together they can paint a house in 10 hours. If charlie gets ill, how long will it take his partner to paint the house by himself?
Click here to see answer by nerdybill(7384)

Question 891656: 2 men and 4 boys can do a piece of work in 10 days,
while 4 men and 5 boys can do it in 6 days. Men and
boys are paid wages according to their output. If the
daily wage of a man is `40, then the ratio of daily wages
of a man and a boy will be.
Click here to see answer by LinnW(1048)

Question 891731: If a girl takes 10 hours to do her job what is her rate?
Click here to see answer by Alan3354(69443)

Question 891755: 8 people require 10 hours to complete a job. How many hours will it take 5 people to complete half the job, if they work at the same rate?
Click here to see answer by josmiceli(19441)

Question 891799: If 10 workers do a certain work in 16 days, than in how many days the same work will be done by 32 workers?
Click here to see answer by josgarithmetic(39614)

Question 891845: Three students Phumelo, Ivan and John painted a room together. They spent 4 hours, 3hours and 1hour respectively on the task. They earned R400 in total. For the job. How much should each of them receive?
Click here to see answer by ankor@dixie-net.com(22740)

Question 892006: A normal 10-cc specimen of human blood contains. 1.2g of hemoglobin. How much hemoglobin would 16cc of the same blood contain?
My attempted solution so far:
1.2g/10cc=x/16cc
- 10cc + 1.2g * 16cc = 10cc*x � 10cc
1.2g * 6cc =x

Click here to see answer by Alan3354(69443)

Question 892082: A can do a piece of work in 16 days. After working on it for 4 days B joins who can complete work in 32 days. if A earns 1200 how much does B earn ?

Click here to see answer by josgarithmetic(39614)

Question 892114: Please help me solve this problem:
A larger pipe can fill a tank in 32 minutes less time than a smaller pipe. If they both are turned on at the same time, they can fill the tank in 30 minutes. How long does it take each pipe alone to fill the tank?
Thank you.
Click here to see answer by Theo(13342)

Question 892275: if rob sarah and George can complete a job in 12 days and rob can work 6 times faster than sarah and 3 times faster than George...how long would it take sarah to complete the job herself?

Click here to see answer by josgarithmetic(39614)

Question 892417: Ann and bob have started their own business making hand-made greeting cards. Ann can make a card in ten minutes while it takes bob six minutes to make the same card. They recently received an order for 90 custom cards. If they start working on the order together at 7:30am and take one 15 minute break at 9:00am at what time will they finish the order?
Click here to see answer by josgarithmetic(39614)

Question 892516: Kel, Del and Mel are painters. Kel can paint the room in 5 hours, Del in 4 hours and Mel in 6 hours. one day, they all start on a room but after an hour, Del and Mel are called for another job. how long will it take Kel to finish the room?
Click here to see answer by richwmiller(17219)

Question 892665: Jared can work 54 math oroblems in one hour. How many problems can he work in 10 minutes?
Click here to see answer by rfer(16322)

Question 892871: three pipes are used to fill a pool with water. individually they can fill the pool in 9 hours,6 hours,3 hours. how many minutes will it take to fill the pool if all three pipes are used simultaneously ?
Click here to see answer by stanbon(75887)

Question 892914: A rectangla planter measuring 81"Lx15"Wx20"D. How many yards of dirt will be needed to fill this?
Click here to see answer by Fombitz(32388)

Question 893036: there are 4 pipes in the pool . first pipe can fill the pool in 2 days. second pipe can fill pond in 3days. third pipe can fill in 4days. last pipe can fill in 6hours. how much time to fill the pool with all the pipes together open?
Click here to see answer by lwsshak3(11628)

Question 893049: A man can paint a room in 8 hours. It takes his son 12 hours to do the same job. After working by himself for 2 hours, his son joined him and together they finished the job. How long did the son work?
Click here to see answer by josgarithmetic(39614)

Question 893817: a department can print 40 copies of a document in 6hours using 4 printers, how many can be printed in 4 hours

Click here to see answer by josgarithmetic(39614)

Question 893811: You can type 7 pages in 2 hours, and your friend can type 8 pages in 3 hours if you both worked together in how many hours would it take the two of you to type 37 pages?
Click here to see answer by richwmiller(17219)

Question 893871: If Jo takes 3 hours to paint a house and Sam takes 5 hours, how long do they take if they paint it together? Give an answer and briefly explain your reasoning.
Click here to see answer by kdonoho(1)

Question 893892: Sixteen people can build an addition onto a house in 8 days. How many person-days does the job require?
Click here to see answer by Fombitz(32388)

Question 891473: A can do 1/3 of a work in 5 days and B can do 2/5 of the work in 10 days. How many days both A and B together can do the work?

...
Click here to see answer by richwmiller(17219)

Question 893970: solve: You pull the plug from the bathtub, after 40 seconds, there are 14 gallons of water left in the tub. After one minute (60 seconds), there are 10 gallons left. Assume that the water continues to drain at this constant rate, how long will it take to completely drtain the tub and how many gallons were in the tub originally?
Click here to see answer by richwmiller(17219)

Question 894015: A water tank has the shape of a cone with the vertex down. The tank is 10 m high and has a base radius of 3 m. When the water in the tank is 5 m deep, what is the area of the surface of the water at that instant? (Hint: make a sketch and set up similar triangles.)
I need help as soon as possible on this problem!! I really appreciate all of the online tutors who are willing to help people like me who just can't understand word problems very clearly!! Thanks again!!!
Click here to see answer by ankor@dixie-net.com(22740)

Question 894215: It takes 3 people 2 1/2 hours to paint a large room. How long would it take 5 people to paint a similar room?
I tried 2 1/2 divided by 3, then multiplied that answer by 5. But I got 41/6 hours which did not make sense because it should be less time not more.
Click here to see answer by reviewermath(1029)

Question 894263: three men do a job in 12 days.Two of the men work twice ass fast as third.How long will it take one of the faster men.
Click here to see answer by ankor@dixie-net.com(22740)

Question 894267: three men do a job in 12 days.Two of the men work twice as fast as third.How long will it take one of the faster men.
Click here to see answer by richwmiller(17219)

Question 894302: Working together, Tom, Dick and Harry need 9 hours to paint a 400 meter long fence. Working alone, Tom could complete the task in 18 hours. Dick cannot work as fast and needs 36 hours to paint the fence by himself. If Tom and Dick take the day off, how long will it take Harry to paint the fence by himself?
Click here to see answer by josgarithmetic(39614)

Question 894307: 12 men complete the job in 6 days, 10 men and 21 women complete the same job in 3 days. how many days will require for 12 women to complete same job.

Click here to see answer by josgarithmetic(39614)

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