Lynn and Gabby had 880 stickers altogether. They decided to play a game. In the first round, Gabby lost 57 stickers to Lynn. In the second round, Lynn lost 31 stickers to Gabby. At the end of the two rounds, Gabby had four times as many stickers as Lynn.

1. How many stickers did Lynn have in the end?
2. How many stickers did Gabby have at the beginning of the game?

	Lynn	Gabby	Total
Before	1 u + 31 - 57	4 u - 31 + 57	880
Round 1	+ 57	- 57
Round 2	- 31	+ 31
After	1 u	4 u	880

(a)
Total number of stickers
= 1 u + 4 u
= 5 u

5 u = 880

1 u = 880 ÷ 5 = 176

Number of stickers that Lynn had in the end
= 1 u
= 176

(b)
Working backwards.

Number of stickers that Gabby had at the end of round 2
= 4 u
= 4 x 176
= 704

Number of stickers that Gabby had at the end of round 1
= 704 - 31
= 673

Number of stickers that Gabby had at the beginning of the game
= 673 + 57
= 730

Answer(s): (a) 176; (b) 730