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3 February, 22:36

Forty five children attend a preschool. The number of two year olds is one half of the number of three year old's. The number of four year olds is the same number as the number of three year old's. How many two year old's are there? How many three year old's are there? How many four year old's are there?

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  1. 3 February, 22:47
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    To put this into an equation, we can make x the amount of two year old's there are.

    x+2x+2x=45

    5x=45

    x=9

    9 two year old's, 18 three year old's, and 18 four year old's.
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