Question
Adam has green and red stickers in the ratio of 1 : 7.
When 42 red stickers are replaced with the same number of green stickers,
the ratio of the number of green and red stickers will be 3 : 7
How many stickers are there altogether?
3 m

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Adam has green and red stickers in the ratio of 1 : 7.
When 42 red stickers are replaced with the same number of green stickers,
the ratio of the number of green and red stickers will be 3 : 7
How many stickers are there altogether?