Flynn had some pastries.
38 of them were scones. The rest were cupcakes. He sold
34 of the scones and 18 cupcakes. In the end, he had 143 pastries left. How many more scones than cupcakes did he sell?
| |
Scones |
Cupcakes |
Comparing pastries
at first |
3x4 =
12 u |
5x4 =
20 u |
Before
|
4x3 =
12 u |
20 u |
Change
|
- 3x3 =
- 9 u |
- 18 |
After
|
1x3 =
3 u |
20 u - 18 |
The number of scones at first is repeated. Make the number of scones at first the same. LCM of 3 and 4 is 12.
Total number of pastries left
= 3 u + 20 u - 18
= 23 u - 18
23 u - 18 = 143
23 u = 143 + 18
23 u = 161
1 u = 161 ÷ 23 = 7
Number of more scones than cupcakes that Flynn sold
= 9 u - 18
= 9 x 7 - 18
= 63 - 18
= 45
Answer(s): 45
