Math

posted by Jessie

If I have 5 different types of trees and want to plant them in groups of three, how many different combinations of groups can I make.
I worked this out and came out with 30.
Am I right?

Thanks for your help

  1. Reiny

    You are using the word "combinations" so it would be
    C(5,3) or 10 of them

    e.g.
    suppose you have A, B, C, D, E kind of trees
    ABC
    ABD
    ABE
    BCD
    BCE
    CDE
    ADE
    ACE
    BDE
    ACD

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