Question
Adam has stickers in 4 colours.
67 of the stickers are yellow.
The rest of the stickers are red, blue and green in the ratio of 1 : 4 : 3.
If there are 90 more blue stickers than red stickers,
how many yellow stickers are there?
3 m

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Adam has stickers in 4 colours.
67 of the stickers are yellow.
The rest of the stickers are red, blue and green in the ratio of 1 : 4 : 3.
If there are 90 more blue stickers than red stickers,
how many yellow stickers are there?