Yen baked a total of 233 macarons and croissants. After giving away 75% of the croissants and 80% of the macarons, she was left with twice as many croissants as macarons. Find the number of macarons Yen gave away.
| |
Croissants |
Macarons |
| Before |
4x2 =
8 u
|
5 u |
| Change |
- 3x2 =
6 u |
- 4 u |
| After |
1x2 =
2 u |
1 u |
Comparing croissants and
macarons in the end |
2x1 =
2 u |
1x1 =
1 u |
75% =
75100 =
3480% =
80100 =
45The number of croissants in the end is the repeated identity. Make the number of croissants in the end the same. LCM of 1 and 2 is 2.
Total number of pastries at first
= 8 u + 5 u
= 13 u
13 u = 233
1 u = 233 ÷ 13 = 7
Number of macarons that Yen gave away
= 4 u
= 4 x 7
= 28
Answer(s): 28
