Question
Adam has stickers in 4 colours.
45 of the stickers are blue.
The rest of the stickers are yellow, red and green in the ratio of 1 : 3 : 7.
If there are 80 more red stickers than yellow stickers,
how many blue stickers are there?
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Adam has stickers in 4 colours.
45 of the stickers are blue.
The rest of the stickers are yellow, red and green in the ratio of 1 : 3 : 7.
If there are 80 more red stickers than yellow stickers,
how many blue stickers are there?