Aunt Diana made 85 more biscuits than tarts. After she gave 0.9 of the biscuits and
25 of the tarts to Gabby, she was left with 116 more biscuits than tarts. How many biscuits did she make?
| |
Biscuits |
Tarts |
Comparing biscuits
and tarts at first |
|
85 more |
Before |
10 u |
5x2 + 85 =
10 u + 85 |
Change |
- 9 u |
- 2x2 - 34 =
- 4 u - 34
|
After |
1 u |
3x2 + 51 =
6 u + 51 |
Comparing biscuits
and tarts in the end |
|
116 more |
0.9 =
910 25 x 85 = 34
Number of tarts that Aunt Diana gave to Gabby = 4 u + 34
If Aunt Diana made another 116 biscuits in the end, the number of biscuits and tarts in the end would be the same.
6 u + 51 = 1 u + 116
6 u - 1 u = 116 - 51
5 u = 65
1 u = 65 ÷ 5 = 13
Number of biscuits that Aunt Diana made
= 10 u
= 10 x 13
= 130
Answer(s): 130
