Adam has 160 blue stickers, red stickers and green stickers.
15% of the stickers are blue.
There are 10 more red stickers than green stickers.

1. How many green stickers are there?
2. How many less blue stickers than red stickers?

Blue	Red	Green	Total
3 u	17 u = 136		20 u = 160
	1 p + 10	1 p

(a)
15% = ¹⁵₁₀₀ = ³₂₀

Total number of stickers = 20 u
Number of blue stickers = 3 u

Number of red and green stickers
= 20 u - 3 u
= 17 u

20 u = 160

1 u = 160 ÷ 20 = 8

Number of red stickers and green stickers
= 17 u
= 17 x 8
= 136

Number of green stickers = 1 p
Number of red stickers = 1 p + 10

Total number of red and green stickers
= 1 p + 1 p + 10
= 2 p + 10

2 p + 10 = 136
2 p = 136 - 10
2 p = 126

1 p = 126 ÷ 2 = 63

Number of green stickers
= 1 p
= 63

(b)
Number of blue stickers
= 3 u
= 3 x 8
= 24

Number of red stickers
= 1 p + 10
= 63 + 10
= 73

Number of less blue stickers than red stickers
= 73 - 24
= 49

Answer(s): (a) 63; (b) 49