SOLUTION: Jackson alone can mark exam scripts in 7 days and his wife can mark same is 10 days. if they work together, what fraction of the work can they do in a day?

Question 1137565: Jackson alone can mark exam scripts in 7 days and his wife can mark same is 10 days. if they work together, what fraction of the work can they do in a day?
Answer by ikleyn(52847) (Show Source): You can put this solution on YOUR website!
.

Jackson makes    of the job per day.  It is his rate of work.


His wife makes    of the job per day.  It is her rate of work.


When they work together, they do   =  =   of the job per day.    ANSWER

The rate of work of two individuals working together is the sum of their individual rates.

Happy learning !

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There is a collection of 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.

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