Adam has some green stickers and red stickers.
If Adam gives away 14 green stickers,
the green stickers will be 20% as many as the red stickers.
If Adam gives away 216 red stickers,
the green stickers will be 75% as many as the red stickers.

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

	Scenario 1		Scenario 2
	Green	Red	Green	Red
Before	1 u + 14	5 u	3 p	4 p + 216
Change	- 14	No change	No change	- 216
After	1 u	5 u	3 p	4 p

(a)
20% = ²⁰₁₀₀ = ¹₅
75% = ⁷⁵₁₀₀ = ³₄

Scenario 1
Number of green stickers at first = 1 u + 14
Number of red stickers at first = 5 u

Scenario 2
Number of green stickers at first = 3 p
Number of red stickers at first = 4 p + 216

1 u + 14 = 3 p --- (1)
5 u = 4 p + 216 --- (2)

(1) _{x 5}
5 u + 70 = 15 p
5 u = 15 p - 70 --- (3)

(3) = (2)
15 p - 70 = 4 p + 216
15 p - 4 p = 70 + 216
11 p = 286

1 p = 286 ÷ 11 = 26

Number of green stickers
= 3 p
= 3 x 26
= 78

(b)
Number of red stickers at first
= 4 p + 216
= 4 x 26 + 216
= 104 + 216
= 320

Answer(s): (a) 78; (b) 320