Adam has 120 blue stickers, green stickers and red stickers.
35% of the stickers are blue.
There are 10 more green stickers than red stickers.

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

Blue	Green	Red	Total
7 u	13 u = 78		20 u = 120
	1 p + 10	1 p

(a)
35% = ³⁵₁₀₀ = ⁷₂₀

Total number of stickers = 20 u
Number of blue stickers = 7 u

Number of green and red stickers
= 20 u - 7 u
= 13 u

20 u = 120

1 u = 120 ÷ 20 = 6

Number of green stickers and red stickers
= 13 u
= 13 x 6
= 78

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

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

2 p + 10 = 78
2 p = 78 - 10
2 p = 68

1 p = 68 ÷ 2 = 34

Number of red stickers
= 1 p
= 34

(b)
Number of blue stickers
= 7 u
= 7 x 6
= 42

Number of green stickers
= 1 p + 10
= 34 + 10
= 44

Number of less blue stickers than green stickers
= 44 - 42
= 2

Answer(s): (a) 34; (b) 2