Nick, Asher and Corwin collected stickers in the ratio of 9 : 5 : 6. After Corwin gave ⁴₅ to Nick and Asher, Corwin had 81 less stickers than Nick. The number of stickers that Asher had increased by 90%. How many stickers did Nick and Corwin have in the end?

	Nick	Asher	Corwin
Before	9 u	5 u	6 u
Change	+ 0.3 u	+ 4.5 u	- 4.8 u
After	9.3 u	9.5 u	1.2 u

Number of stickers that Corwin gave to Nick and Asher
= ⁴₅ x 6 u
= 4.8 u

Number of stickers that Asher received from Corwin
= ⁹⁰₁₀₀ x 5 u
= 4.5 u

Number of stickers that Nick received from Corwin
= 4.8 u - 4.5 u
= 0.3 u

Number of less stickers that Corwin had less than Nick
= 9.3 u - 1.2 u 
= 8.1 u

8.1 u = 81

1 u = 81 ÷ 8.1 = 10

Number of stickers that Nick and Corwin had
= 9.3 u + 1.2 u
= 10.5 u
= 10.5 x 10
= 105

Answer(s): 105