Aunt Anna made 60 less shortbreads than wafers. After she gave 0.9 of the shortbreads and
25 of the wafers to Kathy, she was left with 101 less shortbreads than wafers. How many wafers did she make?
| |
Shortbreads |
Wafers |
Comparing shortbreads
and wafers at first |
|
60 more |
Before |
10 u |
5x2 + 60 =
10 u + 60 |
Change |
- 9 u |
- 2x2 - 24 =
- 4 u - 24
|
After |
1 u |
3x2 + 36 =
6 u + 36 |
Comparing shortbreads
and wafers in the end |
|
101 more |
0.9 =
910 25 x 60 = 24
Number of wafers that Aunt Anna gave to Kathy = 4 u + 24
If Aunt Anna made another 101 shortbreads in the end, the number of shortbreads and wafers in the end would be the same.
6 u + 36 = 1 u + 101
6 u - 1 u = 101 - 36
5 u = 65
1 u = 65 ÷ 5 = 13
Number of wafers that Aunt Anna made
= 10 u + 60
= 10 x 13 + 60
= 130 + 60
= 190
Answer(s): 190
