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January 25, 2015

January 25, 2015

Posted by **ann caples** on Wednesday, December 1, 2010 at 3:45pm.

Marilyn can complete the same programming job in 12 hours if she works alone.

If Sammy and Marilyn work together, how many hours and minutes will they complete the job

- algebra -
**Damon**, Wednesday, December 1, 2010 at 4:07pmS --> 1/8 program per hr

M --> 1/12 prog / hr

together 1/8 + 1/12 = 3/24+2/24 = 5/24 prog/hr

so 24/5 = 4 4/5 hr/prog

4/5 hr * 60 min/hr = 48 minutes

so

4 hours and 48 minutes

- algebra -
**Ron**, Monday, December 6, 2010 at 11:22am48 hours ... due to both coming up with different ways of creating the program, meeting time to compromise both of their designs, added time to meld both their pieces together, and added time to quality check when the two pieces don't work together.

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