Question
Elijah has a total of 30 of green and grey files. 13 of the green files and half of the grey files are new. How many of his grey files are new if he has a total of 14 new files?
4 m

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Elijah has a total of 30 of green and grey files. 13 of the green files and half of the grey files are new. How many of his grey files are new if he has a total of 14 new files?