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3 Bumps

How do I solve this?

If Sam can do a job in 4 days that takes Lisa 6 days and Tom 2 days. How long would it take if they all worked together???

 
KristiS11384

Asked by KristiS11384 at 7:15 PM on Aug. 18, 2010 in Just for Fun

Level 45 (208,469 Credits)
This question is closed.
Answers (12)
  • 12/11=1.09 I just can't figure out how to get to 12/11.
    JGRIMMER

    Answer by JGRIMMER at 8:13 PM on Aug. 18, 2010

  • It depends on if Sam is male or female? HAHA
    dancinintherain

    Answer by dancinintherain at 7:16 PM on Aug. 18, 2010

  • 12 divided by 3 = 4.
    BradenIsMySon

    Answer by BradenIsMySon at 7:17 PM on Aug. 18, 2010

  • 3 days
    louise2

    Answer by louise2 at 7:17 PM on Aug. 18, 2010

  • LOL. Cute answer but it doesn't help me. I'm brushing up on my math skills in order to go back to college. Entrance exams are next week. I'm doing fine on everything else. Questions like the one I posted, however, are stumping me. The practice exams are telling me the answer is 1.09 days, but I don't know how they came to that conclusion.
    KristiS11384

    Comment by KristiS11384 (original poster) at 7:19 PM on Aug. 18, 2010

  • It would be less than 2 days. If it takes Tom 2 days to complete the job on his own, then with Sam and Lisa's help it would take less than 2 days. How do I figure out the rate at which they each work in order to c alculate how fast they work together on the same job
    KristiS11384

    Comment by KristiS11384 (original poster) at 7:21 PM on Aug. 18, 2010

  • tom would just be better off by himself..too many bodies in the way..it would still be about 2 days
    shay1130

    Answer by shay1130 at 7:22 PM on Aug. 18, 2010

  • thats one of those stupid ass questions that you don't need in life
    shay1130

    Answer by shay1130 at 7:23 PM on Aug. 18, 2010

  • Does it give you the solution to get the answer or does the book just give you the answe?
    JGRIMMER

    Answer by JGRIMMER at 7:46 PM on Aug. 18, 2010

  • now my head hurts lol
    ColtsFan1912

    Answer by ColtsFan1912 at 7:53 PM on Aug. 18, 2010

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