Kathy had the same number of pink, brown and yellow stickers at first. After giving some pink and brown stickers and 67 yellow stickers away, Kathy had 162 stickers left. There were 4 times as many pink stickers as brown stickers left. The number of yellow stickers left was 36 fewer than the number of pink stickers left. How many yellow stickers did she have at first?

	Brown	Pink	Yellow	Total
Before	4 u + 31	4 u + 31	4 u + 31
Change	- 3 u - 31	- 31	- 67
After	1 u	4 u	4 u - 36	162

Kathy had the same number of pink, brown and yellow stickers at first.

Total number of stickers in the end
= 1 u + 4 u + 4 u - 36
= 9 u - 36

9 u - 36 = 162
9 u = 162 + 36
9 u = 198

1 u = 198 ÷ 9 = 22

Number of yellow stickers that Kathy had at first
= 4 u - 36 + 67
= 4 u + 31
= 4 x 22 + 31
= 119

Answer(s): 119