The number of banana croissants Ethan baked was
37 of the total number of croissants. After baking another 18 banana croissants, the number of banana croissants became
34 of the total number of croissants. How many croissants did she bake at first?
| |
Banana croissants |
Other croissants |
Total croissants |
| Before |
3 u |
4 u |
7 u |
| Change |
+ 18 |
|
|
| After |
3x4 =
12 u |
1x4 =
4 u |
4x4 =
16 u |
The number of other croissants remains unchanged. Make the number of other croissants the same. LCM of 4 and 1 is 4.
Number of more banana croissants baked
= 12 u - 3 u
= 9 u
9 u = 18
1 u = 18 ÷ 9 = 2
Number of croissants that Ethan baked at first
= 7 u
= 7 x 2
= 14
Answer(s): 14
