Eva baked a total of 376 croissants and puffs. After giving away 90% of the puffs and 75% of the croissants, she was left with five times as many puffs as croissants. Find the number of croissants Eva gave away.
| |
Puffs |
Croissants |
| Before |
10x5 =
50 u
|
4 u |
| Change |
- 9x5 =
45 u |
- 3 u |
| After |
1x5 =
5 u |
1 u |
Comparing puffs and
croissants in the end |
5x1 =
5 u |
1x1 =
1 u |
90% =
90100 =
91075% =
75100 =
34The number of puffs in the end is the repeated identity. Make the number of puffs in the end the same. LCM of 1 and 5 is 5.
Total number of pastries at first
= 50 u + 4 u
= 54 u
54 u = 376
1 u = 376 ÷ 54 = 10
Number of croissants that Eva gave away
= 3 u
= 3 x 10
= 30
Answer(s): 30
