Olivia had 104 vanilla and apple croissants. After giving away
17 of her vanilla croissants and 13 of her apple croissants, she had an equal number of vanilla and apple croissants. How many apple croissants did she have at first?
| |
Vanilla croissants |
Apple croissants |
Total |
| Before |
7 u |
6 u + 13 |
104 |
| Change |
- 1 u |
- 13 |
|
| After |
6 u |
6 u |
|
Fraction of the vanilla croissants left
= 1 -
17=
67 The number of vanilla and apple croissants in the end is the same.
Total number of croissants at first
= 7 u + 6 u + 13
= 13 u + 13
13 u + 13 = 104
13 u = 104 - 13
13 u = 91
1 u = 91 ÷ 13 = 7
Number of apple croissants at first
= 6 u + 13
= 6 x 7 + 13
= 42 + 13
= 55
Answer(s): 55
