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    DnDNerd Posts: 1, Reputation: 1
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    #1

    Mar 1, 2018, 11:45 AM
    Forgotten Tools
    Hello!
    So the other night at D&D my DM threw out a "Math Riddle" and I couldn't remember how set up the solution. Please help!

    Alice and Bob take 2 hours to do a job.
    Alice and Charlie take 3 hours to do the job.
    Bob and Charlie take 4 hours to do the same job.
    How long would it take all three of them to do the same job working together?

    A+B=2
    A+C=3
    B+C=4
    A=.5
    B=1.5
    C=2.5
    It's obvious Alice is under paid and Charlie and Bob should be fired, but I just couldn't remember how o set up to solve the last part of the problem.

    I've been out of school for 15 years so I lost a few less used skills along the way.

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