Winnie baked 144 croissants. ⁵₈ of the croissants were butter cream croissants. The rest were mocha croissants. She gave an equal number of butter cream croissants and mocha croissants away and had 5 times as many butter cream croissants as mocha croissants left. How many croissants did she give away?

	Butter cream croissants	Mocha 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 Winnie gave away an equal number of butter cream croissants and mocha croissants, the difference in the number of butter cream croissants and mocha croissants remains unchanged.  Make the difference in the butter cream croissants and mocha croissants the same.  LCM of 2 and 4 is 4.

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

16 u = 144

1 u = 144 ÷ 16 = 9

Number of croissants that Winnie gave away
= 5 u + 5 u
= 10 u
= 10 x 9 
= 90

Answer(s): 90