Evan bought some matcha and kaya buns in the ratio of 5 : 4. After Evan's classmates ate an equal number of the two types of buns, there were 40% fewer kaya than matcha buns. In the end, there were 168 buns left. How many buns of each type were eaten?
| |
Matcha |
Kaya |
Difference |
| Before |
5x2 =
10 u |
4x2 =
8 u |
1x2 =
2 u |
| Change |
- 5 u |
- 5 u |
|
| After |
5 u |
3 u |
2 u |
100% - 40% = 60%
60% =
60100 =
35The difference in the number of matcha and kaya buns remains unchanged.
LCM of 1 and 2 = 2
Total buns left = 5 u + 3 u = 8 u
8 u = 168
1 u = 168 ÷ 8 = 21
Total number of each type of buns eaten
= 5 u
= 5 x 21
= 105
Answer(s): 105
