Question
Adam has red and green stickers in the ratio of 1 : 5.
When 12 green stickers are replaced with the same number of red stickers,
the ratio of the number of red and green stickers will be 3 : 7
How many stickers are there altogether?
3 m

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Adam has red and green stickers in the ratio of 1 : 5.
When 12 green stickers are replaced with the same number of red stickers,
the ratio of the number of red and green stickers will be 3 : 7
How many stickers are there altogether?