Claire bought some matcha and chocolate croissants in the ratio of 5 : 4. After Claire's classmates ate an equal number of the two types of croissants, there were 30% fewer chocolate than matcha croissants. In the end, there were 153 croissants left. How many croissants of each type were eaten?
| |
Matcha |
Chocolate |
Difference |
| Before |
5x3 =
15 u |
4x3 =
12 u |
1x3 =
3 u |
| Change |
- 5 u |
- 5 u |
|
| After |
10 u |
7 u |
3 u |
100% - 30% = 70%
70% =
70100 =
710The difference in the number of matcha and chocolate croissants remains unchanged.
LCM of 1 and 3 = 3
Total croissants left = 10 u + 7 u = 17 u
17 u = 153
1 u = 153 ÷ 17 = 9
Total number of each type of croissants eaten
= 5 u
= 5 x 9
= 45
Answer(s): 45
