Valen has 30% as many stickers as Lee. If Valen gives away 20% of the stickers and Lee gives away 60% of his stickers, they will have 384 stickers altogether. How many stickers do the two of them have?

	Valen	Lee	Total
Comparing Valen and Lee at first	3x5 = 15 u	10x5 = 50 u
Before	5x3 = 15 u	5x10 =  50 u
Change	- 1x3 = - 3 u	- 3x10 = - 30 u
After	4x3 = 12 u	2x10 = 20 u	384

30% = ³⁰₁₀₀ = ³₁₀

20% = ²⁰₁₀₀ = ¹₅ 

60% =⁶⁰₁₀₀ = ³₅ 

The number of stickers that Valen has at first is repeated.  Make the number of stickers that Valen has the same.  LCM of 3 and 5 is 15 u.

The number of stickers that Lee has at first is repeated. Make the number of stickers that Lee has the same. LCM of 10 and 5 is 50 u.

Number of stickers in the end
= 12 u + 20 u
= 32 u

32 u = 384

1 u = 384 ÷ 32 = 12

Total number of stickers that the two of them have
= 15 u + 50 u
= 65 u
= 65 x 12
= 780

Answer(s): 780