Question
Adam has 180 red stickers and green stickers.
90% of them are red stickers and the rest are green stickers.
When Adam gives away some red stickers,
60% of the remaining stickers are red stickers.
How many stickers does Adam give away?
4 m

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Adam has 180 red stickers and green stickers.
90% of them are red stickers and the rest are green stickers.
When Adam gives away some red stickers,
60% of the remaining stickers are red stickers.
How many stickers does Adam give away?