Adam has some red stickers and green stickers.
If Adam receives another 152 green stickers,
the red stickers will be 25% as many as the green stickers.
If Adam receives another 98 red stickers,
the red stickers will be 75% as many as the green stickers.

1. How many red stickers are there? 
2. How many green stickers are there? 

	Scenario 1		Scenario 2
	Red	Green	Red	Green
Before	1 u	4 u - 152	3 p - 98	4 p
Change	No change	+ 152	+ 98	No change
After	1 u	4 u	3 p	4 p

(a)
25% = ²⁵₁₀₀ = ¹₄
75% = ⁷⁵₁₀₀ = ³₄

Scenario 1
Number of red stickers at first = 1 u
Number of green stickers at first = 4 u - 152

Scenario 2
Number of red stickers at first = 3 p - 98
Number of green stickers at first = 4 p

1 u = 3 p - 98 --- (1)
4 u - 152 = 4 p --- (2)

(2) _{÷ 4}
1 u - 38 = 1 p
1 u = 1 p + 38 --- (3)

(1) = (3)
3 p - 98 = 1 p + 38
3 p - 1 p = 98 + 38
2 p = 136

1 p = 136 ÷ 2 = 68

Number of red stickers
= 3 p - 98
= 3 x 68 - 98
= 204 - 98
= 106

(b)
Number of green stickers
= 4 p
= 4 x 68
= 272

Answer(s): (a) 106; (b) 272