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

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Question 926606: Please help me solve this problem: If it takes 15 children ten hours to complete half of a group project, how long will it take four children to complete the other half? (type value only, no need to type units)
My solution:
Let x be the number of hours taken.
15:10=4:x
x=2.66
However, the solution is incorrect.
Thank you very much!
Click here to see answer by Alan3354(69443)

Question 927090: 4 pipes take 70 minutes to fill a tank. how long will it take for 7 pipes to fill the tank?
Click here to see answer by TimothyLamb(4379)

Question 927350: If Amy mow her lawn every 8 days and Tom mow his lawn every 4 days How many days will pass before they mow Their lawns again?
Click here to see answer by Alan3354(69443)

Question 927538: When Sammi and Lamore work together, they can deliver flyers to all the homes in their neighborhood in 24 min. When Lamore works alone, he needs 14 minutes longer to deliver flyers than Sammi when she works alone. When Sammi works alone, how long does she take to deliver the flyers?
Click here to see answer by josmiceli(19441)

Question 927595: maya can read a 380 page novel in 4 hours. At this rate how many pages will she have read if she has been reading for 1 1/2 hours?

Click here to see answer by 428225(90)

Question 927583: one man paints a room in 1 hour another takes 2 hours how long for both to paint a room
Click here to see answer by josmiceli(19441)

Question 927618: One woman and one man can build a wall together in two hours, but the woman would need the help of two girls in order to complete the same job in the same amount of time. If one man and one girl worked together, it would take them four hours to build the wall. Assuming that rates for men, women and girls remain constant, how many hours would it take one woman, one man, and one girl, working together, to build the wall
Click here to see answer by josmiceli(19441)

Question 927674: For a certain bathtub, it takes the cold water faucet
4
times as long to fill the tub as it does the hot water faucet. Left on together, the two faucets take
4
minutes to fill the tub. How long will it take the cold water faucet to fill the tub by itself?
Click here to see answer by nerdybill(7384)

Question 927718: a pool is filling up with water at a constant rate and began by being partially filled. After two hours of filling the pool had 573 gallons in it and after five hours of filling it had 945 gallons in it. How many gallons were in the pool when it first began filling?
Click here to see answer by brysca(112)

Question 927834: 41. Mr. Agbuya can mow a lawn in 3 hours. His sons, Michael and Ariel, can each do the job in 2 hours. If the father and the sons work together, how long would it take them to mow the lawn?

Click here to see answer by Edwin McCravy(20054)

Question 927838: 45. Ryan can do a job in 12 days. After he has worked for 4 days, he is joined by Sandy. They finish the job together in 2 more days. How long will it take Sandy to do the whole job herself?
Click here to see answer by josgarithmetic(39613)

Question 928007: A chemist wants to mix a 62% alcohol solution with 8 liters of 54% alcohol solution to produce a solution that is 59% alcohol. How many liters of the 62% alcohol solution should be used? Round to two decimal places.
Click here to see answer by Edwin McCravy(20054)

Question 928006: The Divine Chocolate Candy store wants to make a new treat consisting of milk chocolate and hazelnuts. They want to make a 10 pound box that sells for $5 per pound. If hazelnuts sell for $6 per pound and chocolate sells for $4 per pound, how pounds of each must they mix to get their desired product?
Click here to see answer by stanbon(75887)

Question 928256: Eduardo takes 3 hours longer to complete a job than Bill. If they can complete the job together in 4 hours, find how long it takes each person to complete the job alone.

Click here to see answer by TimothyLamb(4379)

Question 928380: show exponial function graph of y=3x
Click here to see answer by MathLover1(20849)

Question 928391: when 12 workers doing 1 work in 12 days then 8 workers doing same work how many days
Click here to see answer by josgarithmetic(39613)

Question 928391: when 12 workers doing 1 work in 12 days then 8 workers doing same work how many days
Click here to see answer by TimothyLamb(4379)

Question 928434: One pipe can fill a pool 1.25 times faster than a second pipe. When both pipes are opened, they fill the pool in 5 hours. How long would it take to fill the pool if only the slower pipe is used?
Click here to see answer by TimothyLamb(4379)

Question 928399: a painter can paint a house in 6 hours her assistant takes 8 hours to do the same job. how long will it take them to complete the job working together?
Click here to see answer by TimothyLamb(4379)

Question 928526: If it takes 15 hours and 16 minutes to drive to location B. How long will it take to walk there?
Click here to see answer by Alan3354(69443)

Question 928544: Two pipes can fill a tank in 23 minutes if both are turned on. If only the smaller pipe is used, it would take 22 minutes longer for it to fill the tank than it would take the larger pipe alone. How long will it take for the smaller pipe to fill the tank? (Round your answer to the nearest tenth.)

Click here to see answer by TimothyLamb(4379)

Question 928649: It takes Richard 39 minutes longer to do a job than it takes Katie to do the same job. Working together they can do the job in 40 minutes. How long will it take Richard and Katie to each do the job alone?
Click here to see answer by stanbon(75887)

Question 928665: A copy machine makes
209
copies in
4
minutes and
45
seconds. How many copies does it make per minute?
Click here to see answer by stanbon(75887)

Question 928665: A copy machine makes
209
copies in
4
minutes and
45
seconds. How many copies does it make per minute?
Click here to see answer by ewatrrr(24785)

Question 928814: If 8 men can build a house in 35 days, how many days would it take 14 men.
Click here to see answer by TimothyLamb(4379)

Question 928837: ryan can do a job in 12 days. after he has worked for 4 days ,he is joined by sandy.they finished the job together in 2 more days .how long would it take sandy to do the whole job herself?
Click here to see answer by richwmiller(17219)

Question 928939: If 3 workers take 8 days to complete a job how many workers would be needed to finish the job in only 6 days if each worked at the same rate?
Click here to see answer by ewatrrr(24785)

Question 928928: A can write 75 pages in 25 hours. A and B together can write 135 pages in 27 hours. in what time can B write 42 pages ?
Click here to see answer by TimothyLamb(4379)

Question 929078: It takes an older computer 4 times as long to send out a company�s email as it does a newer computer. Working together, it takes the two computers
10 minutes to send out the email. How long will it take the newer computer to send out the email on its own?
Click here to see answer by stanbon(75887)

Question 929352: if a painter finishes painting four in a half walls in one hour how many walls can he finish in eight hours

Click here to see answer by harpazo(655)

Question 929338: glen can paint a house is 9 hours while ced can paint the same house in 16 hours. they work together for 4 hours.after 4hours, ced left and len finished the job alone. how many hours did glen take to finish the job?
Click here to see answer by ptaylor(2198)

Question 929653: there are 4 experienced movers who can complete the job in 3 hours, 6 inexperienced movers can complete the job in 4 hours, how long will it take for them to complete the job together?
Click here to see answer by LinnW(1048)

Question 929762: Janet, an experienced shipping clerk, can fill a certain order in 6 hours. Bill, a new clerk, needs 11 hours to do the same job. Working together, how long will it take them to fill the order?
Click here to see answer by ptaylor(2198)

Question 929857: if 1/3 Gal covers 1/8 of a wall. how much paint is needed for the entire wall?
Click here to see answer by Fombitz(32388)

Question 929899: You paint 1/2 wall in 1/4 hour. At that rate, how long will it take you to paint one wall?
Click here to see answer by ptaylor(2198)

Question 929993: Working together, Rosa and Dianne can plant 20 flats of pansies in 3 hours. If Rosa works alone, it takes her 8 hours longer than it takes Dianne alone to plant all 20 flats. How long does it take Rosa to plant the pansies by herself?
Click here to see answer by ewatrrr(24785)

Question 930072: It took davina 45 minutes to clean her room.how many seconds did it take her?
Click here to see answer by algebrahouse.com(1659)

Question 930171: jose can type 3 papers in 4 hours. vanessa can type 4 papers in 5 hours. if they work together how many papers can they type in 3 hours

Click here to see answer by TimothyLamb(4379)

Question 930354: if betty paints a fence in 5 hours and mark paints it in 3 hours, how long would it take if they worked together

Click here to see answer by TimothyLamb(4379)

Question 930275: A piece of work can be done by 6 men & 5 women in 6 days or 3 men & 4 women in 10 days. It can be done by 9 men & 15 women in ?
Click here to see answer by ptaylor(2198)

Question 930425: 4 men and 3 women do work for six days 5 men and 6 women do the some job for four days. how long will it take for one woman to do the same work
Click here to see answer by Edwin McCravy(20054)

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