Aunt Xandra made 100 more croissants than scones. After she gave 0.7 of the croissants and
25 of the scones to Hilda, she was left with 99 more croissants than scones. How many croissants did she make?
| |
Croissants |
Scones |
Comparing croissants
and scones at first |
|
100 more |
Before |
10 u |
5x2 + 100 =
10 u + 100 |
Change |
- 7 u |
- 2x2 - 40 =
- 4 u - 40
|
After |
3 u |
3x2 + 60 =
6 u + 60 |
Comparing croissants
and scones in the end |
|
99 more |
0.7 =
710 25 x 100 = 40
Number of scones that Aunt Xandra gave to Hilda = 4 u + 40
If Aunt Xandra made another 99 croissants in the end, the number of croissants and scones in the end would be the same.
6 u + 60 = 3 u + 99
6 u - 3 u = 99 - 60
3 u = 39
1 u = 39 ÷ 3 = 13
Number of croissants that Aunt Xandra made
= 10 u
= 10 x 13
= 130
Answer(s): 130
