The number of chocolate chip croissants Pierre baked was
47 of the total number of croissants. After baking another 24 chocolate chip croissants, the number of chocolate chip croissants became
45 of the total number of croissants. How many croissants did she bake at first?
| |
Chocolate chip croissants |
Other croissants |
Total croissants |
| Before |
4 u |
3 u |
7 u |
| Change |
+ 24 |
|
|
| After |
4x3 =
12 u |
1x3 =
3 u |
5x3 =
15 u |
The number of other croissants remains unchanged. Make the number of other croissants the same. LCM of 3 and 1 is 3.
Number of more chocolate chip croissants baked
= 12 u - 4 u
= 8 u
8 u = 24
1 u = 24 ÷ 8 = 3
Number of croissants that Pierre baked at first
= 7 u
= 7 x 3
= 21
Answer(s): 21
