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 333049: How do you solve:
A painter can paint a certain house in 12 days. Working with his partner, the two can paint the house in 4 days. How long would it take the partner working alone to paint the house?
Thank you!
Click here to see answer by nerdybill(7384)

Question 333102: I have a 15ft. x 20ft. pool and need to fill it with 6 inches of water. I tried the formula v=bh=3.14*r squared *h and I come up with v=300=3.14(pie)*r squared*h and I am stuck because it looks like I need the radius of the pool cylinder. If this is the case is the radius half of 15ft. and how or what formula should I use since I need to know how many gallons of water I need in order to fill 6 inches of water in the pool and what will the water weight be total and weight per gallon for transport purposes. My email is chucklisa@ymail.com and I struggle now in college algebra and could use all the advice I can get since I forget how to use these formulas daily.
Click here to see answer by solver91311(24713)

Question 333643: Joe can paint their house in 6 days. His father can do the same job in 12 days. How long it take if both working together?

Click here to see answer by josmiceli(19441)

Question 334019: Working alone, it takes Heather 13 hours to tar a roof. Lea can tar the same roof in 15 hours. If they worked together how long would it take them?
The answer is 6.96 hours (I looked at the answer sheet! Shhh!), but I need to know how to solve it! And i have to show all of my work!
Help? Thank you so MUCH!!!
Click here to see answer by Edwin McCravy(20054)

Question 333970: Working together, it takes two different sized hoses 30 minutes to fill a small swimming pool. If it takes 45 minutes for the larger hose to fill the swimming pool by itself, how long will it take the smaller hose to fill the pool on its own?
Click here to see answer by nyc_function(2741)

Question 334018: Working alone, Shawna can pick forty bushels of apples in 12 hours. Find how long it would take them if they worked together.
The answer is 6.46 hours (I looked at the answer sheet! Shhh!), but I need to know how to solve it! And i have to show all of my work!
Help? Thank you so MUCH!!!
Click here to see answer by mananth(16946)

Question 334142: If it takes 10 minutes to saw a log into 3 pieces, how long does it take to saw it into 4 pieces?
a.12 minutes b.13 1/3 minutes c.14 minutes d.15 minutes e.16 minutes

Click here to see answer by Alan3354(69443)

Question 334404: 10 people can do half of the work in 7 days ? how many days will take to do the same work by 5 men?
Click here to see answer by mananth(16946)

Question 334712: A bus company recently expanded and no longer has enough room in its garage for all of its buses. 12 of the buses have to be stored outside. if the company decide to increase their garage by 40%, this will give then enough room for all of their current buses, plus enough room to store another 12 in the future. How many buses does the company currently own?
Click here to see answer by rfer(16322)

Question 334606: a painting job can be completed by 7 painters in 17 days. if 21 more painters joined the team 9 days after starting work on the job, then how many more days are required to complete the job?
Click here to see answer by ankor@dixie-net.com(22740)

Question 335517: Jeff can weed the garden in 4 hours by himself. His wife Brenda takes the same amount of time to weed the garden. After they have worked for 1 hour, their son, Rory helps them to finish the job in 1/2 hour. How long would it have taken Rory and Brenda to do this entire weeding job (start to finish) together?
Click here to see answer by nyc_function(2741)

Question 335833: Please help me solve this problem.
A physics professor can perform an experiment two times as fast as her graduate assistant. The professor left after 4 hours of working together to attend a meeting while the assistant worked 2 more hours ti finish the experiment. How long would it take each of them working alone?
Click here to see answer by Theo(13342)

Question 335808: It takes Stan three hours to mow the lawn and it takes Roger two hours. How long would it take them if they worked together?
Click here to see answer by mananth(16946)

Question 336079: Two pipes fill a storage tank in 9 hours. If the larger pipe fills the tank three times as fast as the smaller one, how long would it take the larger pipe to fill the tank alone?
Click here to see answer by ankor@dixie-net.com(22740)

Question 336457: A rectangular swimmimg pool is surrounded by a walk. The area of the pool is 323 square feet and the outside dimensions of the walk are 20 feet by 22 feet. How wide is the walk?
Click here to see answer by ankor@dixie-net.com(22740)

Question 336594: A crew of 8 people finished 1/4 of a tunnel through a mountain in 30 days. If they added 2 more workers, how long will it take them to finish the tunnel?
Click here to see answer by Fombitz(32388)

Question 336595: Jay has 8 cats that need to be fed while he is away on a 12 day vacation. If a bag of cat food will feed 3 cats for 15 days, how many bags does he need for his vacation?
Click here to see answer by nyc_function(2741)

Question 336947: A window washer can wash the windows on one side of a building in 72 working hours. With an assistant he can do the job in 40 hours. How many hours would the assistant take to do the job working alone?
Click here to see answer by stanbon(75887)

Question 337095: It takes 12 people 1 day to finish 1 job, how long would it take 8 people to finish the same job?
Click here to see answer by Fombitz(32388)

Question 337001: At 10 AM, Francisco is asked by his uncle to weed the garden. From past experience, Francisco knows that this will take him 4 hours, working alone. His older cousin, Rodrigo, when it is his turn to do this job, requires 6 hours. Since Rodrigo wants to go see the game with Francisco and have already bought the tickets for the game a 1 PM, he agrees to help Francisco. Assuming no gain or loss of efficiency, when will they finish if they work together? Can they make it to the game after doing the assignment?
Click here to see answer by ankor@dixie-net.com(22740)

Question 337451: Please help me with this question.
A piece of pasture grows at a constant rate every day. 200 sheep will eat up the grass in 100 days. 150 sheep will eat up the grass in 150 days. How many days does it take for 100 sheep to eat up the grass?

Click here to see answer by stanbon(75887)

Question 338694: Hello,
I am having trouble solving this word problem. I tried 1/8 + 1/12 = 1/x
The problem is:
Batman can clean up all of the crime in Gotham City in 8 hr working alone. Robin can do the same job alone in 12 hr. If Robin starts crime fighting at 8 a.m. and Batman joins him at 10 a.m., then at what time will they have all of the crime cleaned up?
Click here to see answer by ankor@dixie-net.com(22740)

Question 338726: If it takes 15 minutes to fill a pool and 20 minutes to drain it, how long would it take to fill the pool if the drain is left open?
Click here to see answer by stanbon(75887)

Question 338897: An oil tanker can be emptied by the main pump in 5hours. An auxillary pump can empty the tanker in 9 hours. If the main pump is started at 5PM, when should the auxillary pump be started so the tanker is emptied by 9PM?
How do I determine the "time"? I get to 1/9t=1/5 and not sure what to do.
Thank you.
Click here to see answer by nerdybill(7384)

Question 339103: Pipe A can fill a tank in 4h. Pipe B can fill the tank in 9 h less than the time it takes pipe C, a drain pipe, to empty the tank. When all 3 pipes are open, it takes 2h to fill the tank. How much time is required for pipe c to empty the tank if pipes A and B are closed.
thank you for your help!
Click here to see answer by jrfrunner(365)

Question 339147: if anna can paint a house in 4 hours and joe can paint a house in 6 hours. how long will it take them to do it together?
Click here to see answer by nerdybill(7384)

Question 339754: Two cars leave a gas station at the same time traveling in opposite directions. One car travels at 80 kilometer per hour and the other at 96 kilometer per hour. In how many hours will they be 528 kilometer apart?
Click here to see answer by Fombitz(32388)

Question 339793: you paint 2 square yards in 3 hours and your friend paints 4 square yards in 5 hours. how long does it take you and your friend to paint 11 square yards
Click here to see answer by stanbon(75887)

Question 340038: It takes you 15 minutes to wash a car and it takes a friend 6 minutes to wash a car. How long does it take the two of you to wash 7 cars if you work together?
Click here to see answer by josmiceli(19441)

Question 340385: tim can paint a fence in 8 hours. Sarah can paint the same fence in 4 hours. How long will it take to do the job if they work together?
Click here to see answer by stanbon(75887)

Question 340842: It takes a boy 60 minutes to mow the lawn, but his sister can mow it in 90 minutes. How long would it take them to mow the lawn if they worked together, using two lawn mowers?
Click here to see answer by stanbon(75887)

Question 328127: please help
A painting was sold in 1985 for $2 million. The painting was then resold in 1996 for $9 million. Assume that the painting's value increases exponentially. Find the exponential growth rate k, and determine the exponential growth function, assuming V0 = 2. (Round decimals to three places.)

k = 0.125; V(t) = 2e0.125t, where V(t) is in millions and t is the number of years after 1985.
k = 0.137; V(t) = 2e0.137t, where V(t) is in millions and t is the number of years after 1985.
k = 0.137; V(t) = 2e0.137, where V(t) is in millions and t is the number of years after 1985.
k = 0.137; V(t) = 2e0.137t, where V(t) is in millions and t is the number of years after 1997.
please do not sole just need the formula

Click here to see answer by jwells5199(1)

Question 341207: Parallel processing uses two or more computers, working together, to solve a single problem. Using parallel processing, two computers can solve a problem in 20 minutes. If, working alone, one computer can solve a problem in 9 minutes less than the time needed by the second computer, how long would it take the faster computer working alone to solve the problem?
Click here to see answer by stanbon(75887)

Question 340594: Martha can mow a lawn in 60 minutes. Jose can mow the same lawn in 48 minutes. How long would it ake them to mow it together?
Click here to see answer by nyc_function(2741)

Question 341720: Please help me solve this word problem! Thanks :)
It will take you 10 hours to paint your garage and it will take your brother 15 hours to paint your garage. How long will it take if the two of you paint together?
Click here to see answer by user_dude2008(1862)

Question 342164: A plumber and an assistant finished a job in 4h. The job would have taken the plumber 6 h working alone. how long would the job have taken the assistant working alone?
Click here to see answer by ankor@dixie-net.com(22740)

Question 342258: if a boy can mow a lawn of 100 m square in one hour, how long will it take him to mow a lawn 50 m square, assuming that he mows at the same rate each time?
Click here to see answer by datmorg(1)

Question 342302: One pipe fills a pool in 30 min
Another pipe fills a pool in 20 min
Another in 10 min
If all 3 were on how long till the pool is filled

Click here to see answer by mananth(16946)

Question 342301: One pipe fills a pool in 30 min
Another pipe fills a pool in 20 min
Another in 10 min
If all 3 were on how long till the pool is filled

Click here to see answer by Alan3354(69443)

Question 342502: It takes a boy 30 minutes to mow the lawn, but his sister can mow it in 20 minutes. How long would it take them to mow the lawn if they worked together, using two lawn mowers?
Click here to see answer by solver91311(24713)

Question 342784: Please help me with this question!
It takes you 9 mins to wash a car and it takes your friend 12 mins to wash a car. How long does it take the two of you to wash 7 cars if you work together?
Click here to see answer by mananth(16946)

Question 342805: An experienced accountant can prepare a tax return in 9 hours. A novice accountant can do the job in 20 hours. How long will it take them to do the job working together?
Click here to see answer by user_dude2008(1862)

Question 342860: If it takes 4 people 6 hours to landscape a recreation area, how many hours will it take 3 people to complete the same task?
Click here to see answer by edjones(8007)

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