Albert, Billy and Clint collected stickers in the ratio of 9 : 5 : 7. After Clint gave ³₄ to Albert and Billy, Clint had 470 less stickers than Albert. The number of stickers that Billy had increased by 15%. How many stickers did Albert and Clint have in the end?

	Albert	Billy	Clint
Before	9 u	5 u	7 u
Change	+ 4.5 u	+ 0.75 u	- 5.25 u
After	13.5 u	5.75 u	1.75 u

Number of stickers that Clint gave to Albert and Billy
= ³₄ x 7 u
= 5.25 u

Number of stickers that Billy received from Clint
= ¹⁵₁₀₀ x 5 u
= 0.75 u

Number of stickers that Albert received from Clint
= 5.25 u - 0.75 u
= 4.5 u

Number of less stickers that Clint had less than Albert
= 13.5 u - 1.75 u 
= 11.75 u

11.75 u = 470

1 u = 470 ÷ 11.75 = 40

Number of stickers that Albert and Clint had
= 13.5 u + 1.75 u
= 15.25 u
= 15.25 x 40
= 610

Answer(s): 610