SOLUTION: Joe needs 6 hours to file the day's paperwork. It take Charlotte 12 hours to do the same job. How long will it take if they work together?

Question 545137: Joe needs 6 hours to file the day's paperwork. It take Charlotte 12 hours to do the same job. How long will it take if they work together?
Answer by saifoo.khan(162) (Show Source): You can put this solution on YOUR website!
Hello,
1/6 + 1/12 = 1/x
Solve.
(2+1)/12 = 1/x
3/12 = 1/x
1/4 = 1/x
x = 4
So it will take both 4 hrs if they both are going to work.
THank you.

============================
If you need help understanding math so you can solve these problems yourself, then one on one online tutoring is the answer ($15/hr). If you need faster solutions with guaranteed detailed answers, then go with personal problem solving ($1.5-$3.0 per problem). Contact me at einstein.saifoo@gmail.com
Thank you. =)

RELATED QUESTIONS
If Mary can rake leaves in 6 hours and Joe can do it in 7 hours, how long will it take... (answered by richwmiller)

carmen can retile the kitchen floor in 8 hours but if joe helps her, the job will... (answered by checkley79)

If 10 men working 8 hours a day take 15 days to complete a job.How long will it take 20... (answered by lwsshak3)

if 8 workers take 6 hours to build a deck, how long will it take for 2 workers to do the... (answered by stanbon,MathTherapy)

It takes 4 men 6 hours to repair a road. How long will it take 7 men to do the job if... (answered by lenny460)

johnny can do a job in 6 hours. jeffrey can do the same job in 9 hours. how long would it (answered by ewatrrr)

If A does a job in 16 hours and B does the same job in 12 hours, if B and C do the job... (answered by josmiceli,richwmiller)

If it takes 2 men to do a job in 12 hours, how many men will it take to do the same job... (answered by ankor@dixie-net.com)

Maria, an experienced shipping clerk, can fill a certain order in 6 hours. Bill, a new... (answered by scott8148)