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

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Question 520542: Rosita can wax her car in 1hr(s). When she works together with Debbie, they can wax the car in 15 min(s). How long would it take Debbie, working by herself, to wax the car? Hint: convert hours to minutes.
Click here to see answer by scott8148(6628)

Question 520556: it takes 5 workers 9 days to build a barn? how many days would it take 3 workers to build a barn?
extra credit:
if a the barn needs to be build in 7 days, what is the number of workers needed?

Click here to see answer by oberobic(2304)

Question 521103: jerry and kuba are laying a hardwood floor. working alone jerry can finish the job in 20 hours. if they both work together they can do the job in 12 hours. how long would it take kuba to lay the floor alone? i know the answer but not how to show the work
Click here to see answer by richwmiller(17219)

Question 521376: a water tank is connected to two pumps. it takes 40 mins to fill the water tank from the pump at the top, and 60 mins to empty it using the pump at the bottom. if we pump water at the same time as pumping water out, what fraction of the tank will be filled in 1 minute?
Click here to see answer by lwsshak3(11628)

Question 520176: If Bob can lay railway track between two given stations in 16 days and Joe can do the same job in 12 days. With help of Chuck, they did the job in 4 days only. Then, Chuck alone can do the job in?
Click here to see answer by lwsshak3(11628)

Question 520128: Cecily can ride her bike 4mph faster than her husband, Mike. If Cecily can ride 48 mi in the same time that mike can ride 24 mi, what are their speeds?
Click here to see answer by lwsshak3(11628)

Question 518310: A train leaves a station and travels north at 75km/h. Two hours later, a second train leaves on a parallel track traveling north at 125km/h. How far from the station will the second train overtake the first train?
Click here to see answer by lwsshak3(11628)

Question 521551: person a can paint the neighbors house 6 times as fast as person b. the year a and b worked together, it took them 8 days. how long would it take each to paint the house
Click here to see answer by richwmiller(17219)

Question 521566: David can paint the outside of a house in 12 hr. Bill can paint the same house in 9 hr. How long will it take them working together to paint the house?
Click here to see answer by stanbon(75887)

Question 522450: A roofer requires 10 h to shingle a roof. After the roofer and an apprentice work on a roof for 6 h, the roofer moves on to another job. The apprentice requires 8 more hours to finish the job. How long would it take the apprentice, working alone, to do the job?

Click here to see answer by ankor@dixie-net.com(22740)

Question 522592: If 15 workers can complete a job in 20 days, how long should it take 25 workers to complete the same job?
Click here to see answer by ankor@dixie-net.com(22740)

Question 522778: A certain tank can be filled by pipe A in 12 minutes. Pipe B can empty the tank in 18 minutes. If both pipes are open, how long will it take to fill or empty the tank?
Click here to see answer by ankor@dixie-net.com(22740)

Question 522921: 4 people can paint 3 walls in 36 minutes.
How many minutes will it take for 5 people to paint 10 walls? Round to the nearest minute.
Please show me how to arrive at the answer.
Click here to see answer by oberobic(2304)

Question 522873: 6 chairs are made by 8 workers in 12 days. 50 chairs are made by 15 workers in how many days?

Click here to see answer by ankor@dixie-net.com(22740)

Question 522803: if it takes 7 people 15 days to do a job, how long will it take 3 people to do the same job.
Click here to see answer by ankor@dixie-net.com(22740)

Question 522980: 30 workers complete a work in 15 days and 36 workers to complete same work in how many days
Click here to see answer by chibisan(131)

Question 523218: Alexandra and Frank can assemble a King Kong swingset working together in 6 hours. One day, when Frank called in sick, Alexandra was able to assemble a King Kong swingset in 10 hours. How long would it take Frank to assemble a King Kong swingset if he worked by himself?
Click here to see answer by lwsshak3(11628)

Question 523482: working alone jennifer can pick forty bushels of apples in 12 hours . tosakan can pick the same amount in 10 hours .how long would it take them if they worked together
Click here to see answer by oberobic(2304)

Question 523911: dan washes 3 cars in 2hrs. sue washes 3 cars in 1.5 hrs. how long to wash 3 cars together?
Click here to see answer by htmentor(1343)

Question 524066: A man can do a piece of work in 9 hours. After he worked 3 hours alone, he was joined by his son, and they finished the job in 4 1/2 hours. How many hours would it take the son to do the job alone?
Click here to see answer by oberobic(2304)

Question 524123: A plane can travel 910 miles with a 35 mph tailwind in the same time it can travel 760 miles with 49mph headwind. How fast can the plane travel with no wind resistance?
Click here to see answer by mananth(16946)

Question 524142: Three brothers decide to paint their house. Kevin could paint the house in 12 hours, and Nick could paint it in 15 hours. When they work together with their brother, Joe, it only takes five hours to paint the whole house. How long would it take Joe to paint the house if he worked alone?
Click here to see answer by mananth(16946)

Question 524430: It takes Derek 50 minutes to shovel snow from his driveway. When he works with his brother Ken, it takes only 30 min. How long would it take Ken to do the shoveling himself?
Click here to see answer by josmiceli(19441)

Question 524617: if she works .75hrs each day how many minutes each day do she work.....
Click here to see answer by oberobic(2304)

Question 524617: if she works .75hrs each day how many minutes each day do she work.....
Click here to see answer by edjones(8007)

Question 524685: A light bulb consumes watt-hours per day. How many watt-hours does it consume in days and hours?
Click here to see answer by solver91311(24713)

Question 524810: John can mow the yard in 4 hours alone. Howie can mow the yard in 3 hours alone. how long will it take them if they mow the yard together?
Click here to see answer by solver91311(24713)

Question 525370: if it took 40 men to build 20 sheds in 2 hours then how many hours did it take 5 men to build 10 sheds?
Click here to see answer by ankor@dixie-net.com(22740)

Question 525519: mike can clean a backyard twice as fast as jill. jill takes one hour longer than john to clean the same backyard.john cleans the backyard in three hours. how long will it take all three to clean the yard together?
leave the answer in simplest fractional terms.
Click here to see answer by josmiceli(19441)

Question 525537: A swimming pool can be filled up in 4 hours by pipe A, 3 hours by pipe B, and 6 hours by pipe C. At 8:00am, these three pipes started working together. After one hour, pipe B was turned off, pipe A and C continued. What was the exact time when the swimming pool was filled up?
Click here to see answer by lwsshak3(11628)

Question 525536: a tank for storing water can be emptied in 10 hours when two faucets are open. if one of the faucet alone will empty the tank in 15 hours, how many hours will it take the faucet alone to empty the tank?
Click here to see answer by lwsshak3(11628)

Question 526636: an office has an old copying machine and a new one. Working together, it takes both machines 8 hours to make all the copies of the annual financial report. Working alone, it takes the old copying machine 30 hours longer than the new one to make all the copies of the report. How long would it take the new copying machine to make all the copies working alone?
Click here to see answer by ankor@dixie-net.com(22740)

Question 526783: sammy can mow a lawn in 3 hours. his two young brothers can each do the job in 2 hours. if sammy and his two young brothers work together, how long would it take them to mow a lawn?
Click here to see answer by KMST(5328)

Question 526779: sammy can mow a lawn in 3 hours. his two young brothers can each do the job in 2 hours. if sammy and his two young brothers work together, how long would it take them to mow the lawn?

Click here to see answer by alma11(1)

Question 526782:
Click here to see answer by Earlsdon(6294)

Question 526825: 1) A large pipe and a small pipe are used to fill a tank and a third pipe is used to drain the tank. If the three pipes are open, it takes 3 hours to fill the tank. If the large pipe and the drain are open and the small pipe is closed, it takes 6 hours to fill the tank. If the small pipe and the drain are open and the large pipe is closed, it takes 12 hours to fill the tank. How long will it take each pipe to fill the tank alone if the drain is closed and how long will it take the drain to empty a full tank?
2) On a store counter, there was a supply of three sizes of Christmas cards. The large cards cost $25 each; the medium cards cost $20 each and the small cards cost $10 each. A woman purchased eighteen cards, which consisted of one fifth of the available large card, one third of the available medium cards and one fourth of the available small cards. The total cost of her cards was $295. If there were 50 cards remaining on the counter after her purchase, how many each kind of card did she buy?

Click here to see answer by ankor@dixie-net.com(22740)

Question 527381: Two men can do a piece of work in 8 hours. If one man can do it alone in 14 hours, how long would it take the other man to do the work alone?
Click here to see answer by josmiceli(19441)

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