SOLUTION: Maya takes 12 hours to type a report. Her friend helps her and together they finish the job in 4 hours. How long would it take her friend has she worked alone?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Maya takes 12 hours to type a report. Her friend helps her and together they finish the job in 4 hours. How long would it take her friend has she worked alone?      Log On


   

Question 940063: Maya takes 12 hours to type a report. Her friend helps her and together they finish the job in 4 hours. How long would it take her friend has she worked alone?
Answer by srinivas.g(540) About Me  (Show Source):
You can put this solution on YOUR website!
Maya takes 12 hours to type a report
In 1 hr, she can type = 1/12 of report
maya & her friend together can type in 4 hrs
In 1 hr, they together can type 1/4 of report
In 1 hr, her friend alone can type = +%0D%0A%281%2F4%29-%281%2F12%29
=1%2F4%29%2A%2812%2F12%29+-1%2F12
=+3%2F12-1%2F12
=%283-1%29%2F12
=+2%2F12
=+1%2F6
In 1 hr , her friend alone can type 1/6 th report.
To type full report , she will take 6 hours
Result:her alone can type in 6 hrs