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Define the time (in days) taken by each person as: TA, TB and TC. In one day, A, B and C can respectively complete the following proportions of the work: 1/TA, 1/TB and 1/TC So together, they complete 1/TA + 1/TB + 1/TC of the work. It follows that they take 1 / [1/TA + 1/TB + 1/TC] days to complete the job together. So we can write * 6 = 1 / [1/TA + 1/TB + 1/TC] And by similar arguments: * 9 = 1 / [1/TB + 1/TC] * 8 = 1 / [1/TA + 1/TC] Solve the three equations simultaneously: * 1/6 = 1/TA + 1/TB + 1/TC * 1/9 = 1/TB + 1/TC subtracting yields 1/6 - 1/9 = 1/TA 1/TA = 1/18 * 1/9 = 1/TB + 1/TC * 1/8 = 1/18 + 1/TC subtracting yields 1/8 - 1/9 = 1/18 - 1/TB 1/TB = 1/9 - 1/8 + 1/18 = 3/72 = 1/24 and finally 1/TC = 1/8 - 1/18 = 5/72 Thus: TA = 18, TB = 24, TC =72/5.
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A can do a work in 20 days He worked for it for 4 days and the remaining work was finished by B in 16 days Working together A and B can finish the work in?
'A' can do the job in 20 days. He does (1/20th) of the job in 1 day. After 4 days, he finished(4/20ths) of the job, and there were (16/20ths) remaining. That's when 'B' came along.'B' finished the (16/20ths) of the job in 16 days, so 'B' also does (1/20th) of the job each day.If they work together from the beginning of a new job, they do (1/20 + 1/20) = 2/20 = 1/10thof the job each day, and it takes them 10 days to do the whole thing together.
How many working days in six weeks?
There are 30 working days in six weeks.
A and b can finish a piece of work in 6 day and 4 days respectively A started the work and worked for 2 days he was then joined by B find the total time taken to finish the work?
A does 1/6 of the work in 1 day. B does 1/4 of the work in 1 day. Assuming there is no synergy, A and B, together do 1/6 + 1/4 = 5/12 of the work in 1 day A worked for 2 days so completed 2*(1/6) = 1/3 of the work. So 2/3 of the work remained to be done by A and B together. They would do it in (2/3) / (5/12) = (2/3) * (12/5) =24/15 = 8/5 = 1.6 days. The total time to finish the work is 2 days + 1.6 days = 3.6 days.
20 men take 15 days to finish a job how many days can 25 men finish that work?
Use ratios, 20/15 = 25/x Multiply 15 by 20, then divide by 25. So 25 men could finish a job in 12 days.
If 6 men can paint a fence in 2 days how many men working at the same uniform rate can finish it in 1 day?
Double the men, halve the time. So 12 men will do it in one day.
A and B can do a work in 6 days. B alone can do in 16 days. After 3 days B withdraws. Then how many days can be needed by A to do the work alone?
-- B can do the job alone in 16 days.-- So B does 1/16 of the job per day.-- In 6 days, B does 6/16 = 3/8 of the job.-- If A and B working together do the job in 6 days, then A does the other 5/8 of the job in 6 days.-- So A does 5/48 of the job each day.-- If they begin together, then after 3 days, A has done 5/16 and B has done 3/16.Together, they've finished 8/16 = 1/2 of the job. Not so surprising, when we recallthat it takes them 6 days to do the whole thing together.-- Half of the job then remains for A to finish on his own. Since he does 5/48 per day,he needs 24/5 = 4.8 days to finish off the last half.4.8 more days
Working together A and B finish work in 16 days.If A does twice the work B does how many days does A take to finish the work alone?
The whole job takes 16 days.If you carve up the job into 48 pieces, then (48/16) = 3 pieces were done each day,of which 'A' did 2 pieces and 'B' did 1 piece.Since 'A' does 2 pieces of work a day, and a whole job consists of 48 pieces,it takes him (48/2) = 24 days to do the whole job alone.
A and B can do a one work in 6 days If A alone can finish in 9 days B will do it in how many days?
A & B together do 1/6 in 1 day. A alone does 1/9 in 1 day so in 1 day B does (1/6 - 1/9) ie 1/18 so would take 18 days on his own.
Did Nikola Tesla work with somebody or alone?
As he got his company put together, he hired workers but at the end of his days he worked alone.
If you have 10 tasks to complete to finish a project how many days will you need to spend working on this course if you spend five days on each task?
10 tasks x 5 days per task = 50 days
10 men and 15 women can finish work in 6 days 1 man can finish in 100 days How many days will it take for 1 woman to finish her work?
225 days
If you have 10 tasks to complete to finish a project how many days will you need to spend working on this course if you spend 5 days on each task?
You will need a total of 50 days to complete the project.
A can do a work in 20 days He worked for it for 4 days and the remaining work was finished by B in 16 days Working together A and B can finish the work in?
'A' can do the job in 20 days. He does (1/20th) of the job in 1 day. After 4 days, he finished(4/20ths) of the job, and there were (16/20ths) remaining. That's when 'B' came along.'B' finished the (16/20ths) of the job in 16 days, so 'B' also does (1/20th) of the job each day.If they work together from the beginning of a new job, they do (1/20 + 1/20) = 2/20 = 1/10thof the job each day, and it takes them 10 days to do the whole thing together.
A and B can do a one work in 6 days If A alone can finish in 10 days B will do it in how many days?
A does 1/10 per day on his own, so in 6 days he's done 60%, leaving 40% done by B in 6 days. B will take 6 x 100/40 days on his own, ie 15 days
How do you solve Women and 12 children together take four days to complete a piece of work How many days will four children alone take to complete the piece of work if two women alone can complete the?
It might have been possible to answer the question is you had had the time to complete the question!
If a man working 6 12 hr per day can finish a piece of work in 12 days how many hours per day must be work to complete it in 8 days?
If a man working 6 hours per day can complete a piece of work in 12 days, the total work done is 6 hours/day × 12 days = 72 hours. To finish the same work in 8 days, he needs to work 72 hours ÷ 8 days = 9 hours per day. Therefore, he must work 9 hours per day to complete the task in 8 days.
How do you make a Siamese cat get alone with a new cat?
First. Let the two cats stay together. Then after a few days keep an eye on them. If you see them sitting together, Brushing fur together, eating together and so on, They will probably start mating!!
