Min and Vanessa collected stickers. Min gave 25% of her stickers to Vanessa and as a result, Vanessa's stickers increased by 30%. If Min had 108 stickers left, find the number of stickers Vanessa should give to Min in the end so that both had an equal number of stickers.

	Min	Vanessa	Comparing the change in Vanessa's stickers
Before	4x3 = 12 u		10x1 = 10u
Change	- 1x3 = - 3 u	+ 1x3 = + 3 u	+ 3x1 = + 3 u
After	3x3 = 9 u		13x1 = 13 u

25% = ²⁵₁₀₀ = ¹₄
30% = ³⁰₁₀₀ = ³₁₀

The increase in the number of stickers that Vanessa had is repeated.  Make the increase in the number of stickers that Vanessa had the same. LCM of 1 and 3 = 3

9 u = 108

1 u = 108 ÷ 9 = 12

Number of stickers that Vanessa had more than Min in the end
= 13 u - 9 u
= 4 u

Number of stickers that Vanessa should give to Min so that both had an equal number of stickers in the end
= 4 u ÷ 2
= 2 u
= 2 x 12
= 24

Answer(s): 24