Ethan, Liam and Chester collected stickers in the ratio of 10 : 4 : 9. After Chester gave ³₁₀ to Ethan and Liam, Chester had 224 less stickers than Ethan. The number of stickers that Liam had increased by 20%. How many stickers did Ethan and Chester have in the end?

	Ethan	Liam	Chester
Before	10 u	4 u	9 u
Change	+ 1.9 u	+ 0.8 u	- 2.7 u
After	11.9 u	4.8 u	6.3 u

Number of stickers that Chester gave to Ethan and Liam
= ³₁₀ x 9 u
= 2.7 u

Number of stickers that Liam received from Chester
= ²⁰₁₀₀ x 4 u
= 0.8 u

Number of stickers that Ethan received from Chester
= 2.7 u - 0.8 u
= 1.9 u

Number of less stickers that Chester had less than Ethan
= 11.9 u - 6.3 u 
= 5.6 u

5.6 u = 224

1 u = 224 ÷ 5.6 = 40

Number of stickers that Ethan and Chester had
= 11.9 u + 6.3 u
= 18.2 u
= 18.2 x 40
= 728

Answer(s): 728