Zoe had 117 apricot and blueberry croissants. After giving away
18 of her apricot croissants and 12 of her blueberry croissants, she had an equal number of apricot and blueberry croissants. How many blueberry croissants did she have at first?
| |
Apricot croissants |
Blueberry croissants |
Total |
| Before |
8 u |
7 u + 12 |
117 |
| Change |
- 1 u |
- 12 |
|
| After |
7 u |
7 u |
|
Fraction of the apricot croissants left
= 1 -
18=
78 The number of apricot and blueberry croissants in the end is the same.
Total number of croissants at first
= 8 u + 7 u + 12
= 15 u + 12
15 u + 12 = 117
15 u = 117 - 12
15 u = 105
1 u = 105 ÷ 15 = 7
Number of blueberry croissants at first
= 7 u + 12
= 7 x 7 + 12
= 49 + 12
= 61
Answer(s): 61
