3rd grade math (not algebra!)

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There are 18 bikes in a bike rack. There are 4 more blue bikes than yellow bikes and 2 less yellow bikes than green bikes. How many bikes of each color are in the rack?

  • 3rd grade math (not algebra!) -

    4 yellow bikes
    8 blue bikes
    6 green bikes

    4+8+6=18

  • 3rd grade math (not algebra!) -

    can you post how you solved it...I can
    solve it using algebra.. but can't figure it out otherwise!!!

  • 3rd grade math (not algebra!) -

    Ehh I just knew

  • 3rd grade math (not algebra!) -

    There is 10 blue bikes 6 green bikes and 2 yellow bikes

  • 3rd grade math (not algebra!) -

    from the information above:

    I blue = yellow + 4
    II yellow = green - 2
    OR yellow +2 = green

    and we know that
    III yellow + blue + green = 18

    now insert upper expressions into the III equation:

    yellow + (yellow +4) + (yellow +2) = 18

    3 yellow + 6 = 18

    --> yellow = 4

    insert 4 into upper equation and you will get
    blue= 4+4
    green= 4+2

  • 3rd grade math (not algebra!) -

    18 bikes in all. 4 more blue than yellow, 2 less yellow than green, how many green bikes are there?

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