Answers

2014-11-22T18:21:19+08:00
2+3+4 = 9
81÷9 =9
2×9=18
3×9=27
4×9= 36
Maria= 18
jack=27
fred= 36
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2014-11-22T19:37:40+08:00

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Let 2:3:4 be 2x+3x+4x

2x+3x+4x=81
9x=81
x=9

Substitute the value

2:3:4
=18:27:36

Maria gets 18 cookies, Jack gets 27 cookies, and Fred gets 36 cookies
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