Aunt Raeann made 65 less wafers than biscuits. After she gave 0.7 of the wafers and
25 of the biscuits to Gem, she was left with 66 less wafers than biscuits. How many biscuits did she make?
| |
Wafers |
Biscuits |
Comparing wafers
and biscuits at first |
|
65 more |
Before |
10 u |
5x2 + 65 =
10 u + 65 |
Change |
- 7 u |
- 2x2 - 26 =
- 4 u - 26
|
After |
3 u |
3x2 + 39 =
6 u + 39 |
Comparing wafers
and biscuits in the end |
|
66 more |
0.7 =
710 25 x 65 = 26
Number of biscuits that Aunt Raeann gave to Gem = 4 u + 26
If Aunt Raeann made another 66 wafers in the end, the number of wafers and biscuits in the end would be the same.
6 u + 39 = 3 u + 66
6 u - 3 u = 66 - 39
3 u = 27
1 u = 27 ÷ 3 = 9
Number of biscuits that Aunt Raeann made
= 10 u + 65
= 10 x 9 + 65
= 90 + 65
= 155
Answer(s): 155
