Kimberly and Bobby collect erasers and stickers. Bobby has 64 less erasers than stickers. Bobby has 2 times the number of erasers Kimberly has, and Kimberly has 25% more stickers than Bobby. After Kimberly gives Bobby all of her erasers and Bobby gives Kimberly 75% of his stickers, Bobby has 34 more erasers than stickers. Find the number of stickers Kimberly has at first.

Kimberly		Bobby
Stickers	Erasers	Stickers	Erasers
2.5 u + 80	1 u	2 u + 64	2 u
+ 1.5 u + 48	- 1 u	- 1.5 u - 48	+ 1 u
4 u + 128	0	0.5 u + 16	3 u

100%+ 25% = 125% 

125% x 2 u
= ¹²⁵₁₀₀ x 2 u
= 2.5 u

125% x 64
= ¹²⁵₁₀₀ x 64
= 80 

75% x 2 u
= ⁷⁵₁₀₀ x 2 u
= 1.5 u  

75% x 64 
= ⁷⁵₁₀₀ x 64
= 48 

If another 34 stickers are given to Bobby, he will have equal number of stickers and erasers in the end.
3 u = 0.5 u + 16 + 34
3 u - 0.5 u = 50
2.5 u = 50

1 u = 50 ÷ 2.5 = 20

Number of stickers that Kimberly has at first
= 2.5 u + 80
= 2.5 x 20 + 80
= 50 + 80
= 130
 
Answer(s): 130