Jamie bought some kaya and matcha puffs in the ratio of 7 : 6. After Jamie's classmates ate an equal number of the two types of puffs, there were 40% fewer matcha than kaya puffs. In the end, there were 168 puffs left. How many puffs of each type were eaten?
| |
Kaya |
Matcha |
Difference |
| Before |
7x2 =
14 u |
6x2 =
12 u |
1x2 =
2 u |
| Change |
- 9 u |
- 9 u |
|
| After |
5 u |
3 u |
2 u |
100% - 40% = 60%
60% =
60100 =
35The difference in the number of kaya and matcha puffs remains unchanged.
LCM of 1 and 2 = 2
Total puffs left = 5 u + 3 u = 8 u
8 u = 168
1 u = 168 ÷ 8 = 21
Total number of each type of puffs eaten
= 9 u
= 9 x 21
= 189
Answer(s): 189
