Zara baked 32 croissants. ⁵₈ of the croissants were chocolate croissants. The rest were vanilla croissants. She gave an equal number of chocolate croissants and vanilla croissants away and had 5 times as many chocolate croissants as vanilla croissants left. How many croissants did she give away?

	Chocolate croissants	Vanilla croissants	Difference
Before	5x2 = 10 u	3x2 = 6 u	2x2 = 4 u
Change	- 5 u	- 5 u
After	5x1 = 5 u	1x1 = 1 u	4x1 = 4 u

Since Zara gave away an equal number of chocolate croissants and vanilla croissants, the difference in the number of chocolate croissants and vanilla croissants remains unchanged.  Make the difference in the chocolate croissants and vanilla croissants the same.  LCM of 2 and 4 is 4.

Total number of croissants at first
= 10 u + 6 u
= 16 u

16 u = 32

1 u = 32 ÷ 16 = 2

Number of croissants that Zara gave away
= 5 u + 5 u
= 10 u
= 10 x 2 
= 20

Answer(s): 20