Luke, Vincent and Clayton collected stickers in the ratio of 9 : 8 : 10. After Clayton gave ⁷₁₀ to Luke and Vincent, Clayton had 530 less stickers than Luke. The number of stickers that Vincent had increased by 30%. How many stickers did Luke and Clayton have in the end?

	Luke	Vincent	Clayton
Before	9 u	8 u	10 u
Change	+ 4.6 u	+ 2.4 u	- 7 u
After	13.6 u	10.4 u	3 u

Number of stickers that Clayton gave to Luke and Vincent
= ⁷₁₀ x 10 u
= 7 u

Number of stickers that Vincent received from Clayton
= ³⁰₁₀₀ x 8 u
= 2.4 u

Number of stickers that Luke received from Clayton
= 7 u - 2.4 u
= 4.6 u

Number of less stickers that Clayton had less than Luke
= 13.6 u - 3 u 
= 10.6 u

10.6 u = 530

1 u = 530 ÷ 10.6 = 50

Number of stickers that Luke and Clayton had
= 13.6 u + 3 u
= 16.6 u
= 16.6 x 50
= 830

Answer(s): 830