SOLUTION: Kelvin takes 3 hours to clean a fish tank. Rice takes 6 hours to clean an identical fish tank. If they are to clean the fish tank together, what fraction of the fish tank can they

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Kelvin takes 3 hours to clean a fish tank. Rice takes 6 hours to clean an identical fish tank. If they are to clean the fish tank together, what fraction of the fish tank can they       Log On


   

Question 1180323: Kelvin takes 3 hours to clean a fish tank. Rice takes 6 hours to clean an identical fish tank. If they are to clean the fish tank together, what fraction of the fish tank can they clean in an hour?
Teacher’s comment
Find the fraction of the fish tank each person can clean in one hour.
Answer by ikleyn(52787) About Me  (Show Source):
You can put this solution on YOUR website!
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Kelvin makes  1%2F3  of the job per hour.


Rice makes  1%2F6  of the job per hour.


Working together, they do  1%2F3+%2B+1%2F6 = 2%2F6+%2B+1%2F6 = 3%2F6 = 1%2F2  of the job per hour.    ANSWER


Solved, answered and explained exactly in accordance with the teacher's instructions.

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It is a standard and typical joint work problem.

There is a wide variety of similar solved joint-work problems with detailed explanations in this site.  See the 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


Read them and get be trained in solving joint-work problems.

Also,  you have this free of charge online textbook in ALGEBRA-I in this site
    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this textbook under the topic
"Rate of work and joint work problems"  of the section  "Word problems".


Save the link to this online textbook together with its description

Free of charge online textbook in ALGEBRA-I
https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson

to your archive and use it when it is needed.