Ryan had some pastries.
47 of them were cookies. The rest were cupcakes. He sold
35 of the cookies and 2 cupcakes. In the end, he had 182 pastries left. How many more cookies than cupcakes did he sell?
| |
Cookies |
Cupcakes |
Comparing pastries
at first |
4x5 =
20 u |
3x5 =
15 u |
Before
|
5x4 =
20 u |
15 u |
Change
|
- 3x4 =
- 12 u |
- 2 |
After
|
2x4 =
8 u |
15 u - 2 |
The number of cookies at first is repeated. Make the number of cookies at first the same. LCM of 4 and 5 is 20.
Total number of pastries left
= 8 u + 15 u - 2
= 23 u - 2
23 u - 2 = 182
23 u = 182 + 2
23 u = 184
1 u = 184 ÷ 23 = 8
Number of more cookies than cupcakes that Ryan sold
= 12 u - 2
= 12 x 8 - 2
= 96 - 2
= 94
Answer(s): 94
