Auntie Opal baked 60 less vanilla buns than banana buns. After she gave 0.8 of the vanilla buns to Ivory and
14 of the banana buns, she was left with 89 more banana buns than vanilla buns. How many buns did she bake?
| |
Vanilla buns |
Banana buns |
Comparing vanilla buns
and banana buns
at first |
|
60 more |
Before
|
5x4 =
20 |
4x5 =
20 u |
+ 60 |
Change
|
- 4x4 =
- 16 u |
- 1x5 =
- 5 u |
- 15 |
After
|
1x4 =
4 u |
3x5 =
15 u |
+ 45 |
Comparing vanilla buns
and banana buns
in the end |
|
89 more
|
0.8 =
810 =
4514 x 60 = 15
60 - 15 = 45
If Auntie Opal baked another 89 vanilla buns, there would be equal number of banana buns and vanilla buns in the end.
15 u + 45 = 4 u + 89
15 u - 4 u = 89 - 45
11 u = 44
1 u = 44 ÷ 11 = 4
Total buns that Auntie Opal baked
= 20 u + 60 + 20 u
= 40 u + 60
= 40 x 4 + 60
= 160 + 60
= 220
Answer(s): 220
