Aunt Ivory made 100 less puffs than scones. After she gave 0.9 of the puffs and
35 of the scones to Jane, she was left with 52 less puffs than scones. How many scones did she make?
| |
Puffs |
Scones |
Comparing puffs
and scones at first |
|
100 more |
Before |
10 u |
5x2 + 100 =
10 u + 100 |
Change |
- 9 u |
- 3x2 - 60 =
- 6 u - 60
|
After |
1 u |
2x2 + 40 =
4 u + 40 |
Comparing puffs
and scones in the end |
|
52 more |
0.9 =
910 35 x 100 = 60
Number of scones that Aunt Ivory gave to Jane = 6 u + 60
If Aunt Ivory made another 52 puffs in the end, the number of puffs and scones in the end would be the same.
4 u + 40 = 1 u + 52
4 u - 1 u = 52 - 40
3 u = 12
1 u = 12 ÷ 3 = 4
Number of scones that Aunt Ivory made
= 10 u + 100
= 10 x 4 + 100
= 40 + 100
= 140
Answer(s): 140
