SOLUTION: One person can do a certain job in ten minutes, and another person can do the same job in fifteen minutes. How many minutes will they take to do the job together?
If x represent
Algebra.Com
Question 1032863: One person can do a certain job in ten minutes, and another person can do the same job in fifteen minutes. How many minutes will they take to do the job together?
If x represents how many minutes to do the job together, then how much of the job does the slowest person do?
Found 2 solutions by stanbon, ikleyn:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
One person can do a certain job in ten minutes, and another person can do the same job in fifteen minutes. How many minutes will they take to do the job together?
One person's rate:: 1/10 job/hr
Other person's rate:: 1/15 job/hr
--------------
Together rate:: 1/x job/hr
-----------------------
If x represents how many minutes to do the job together, then how much of the job does the slowest person do?
----------
Equation:
rate + rate = together rate
1/10 + 1/15 = 1/x
15x + 10x = 10*15
-----
25x = 150
x = 6 minutes (time to do the job together)
-------
Cheers,
Stan H.
---------------
Answer by ikleyn(52797) (Show Source): You can put this solution on YOUR website!
.
One person can do a certain job in ten minutes, and another person can do the same job in fifteen minutes. How many minutes will they take to do the job together?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
A wide variety of similar introductory joint-work problems were solved for you with detailed explanations in these lessons
- Using Fractions to solve word problems on joint work,
- Solving more complicated word problems on joint work,
- Selected joint-work word problems from the archive
RELATED QUESTIONS
One person can do a certain job in one-half hour, and another person can do the same job... (answered by nerdybill)
One person can do a certain job in twenty-one minutes, and another person can do the same (answered by checkley71)
One person can do a certain job in 15 minutes, and another person can do the same job in... (answered by Maths68)
person 1 can do a certain job in fifteen minutes, and person 2 can do the same job in... (answered by greenestamps,josmiceli)
three people together can do certain job in three hours. Of one of them can the job in... (answered by josgarithmetic)
Two people together can do a certain job in twenty minutes. If one of them can do the job (answered by stanbon)
Person 1 can do a certain job in twenty-one minutes, and person 2 can do the same job in... (answered by Alan3354)
One person can do a certain job in six days, a second person can do the same job in two... (answered by mananth)
If two people can do a job in 12 minutes. And one person takes 30 minutes how long does... (answered by ntnk)