Xavier had some pastries.
27 of them were wafers. The rest were cupcakes. He sold
25 of the wafers and 10 cupcakes. In the end, he had 269 pastries left. How many more wafers than cupcakes did he sell?
| |
Wafers |
Cupcakes |
Comparing pastries
at first |
2x5 =
10 u |
5x5 =
25 u |
Before
|
5x2 =
10 u |
25 u |
Change
|
- 2x2 =
- 4 u |
- 10 |
After
|
3x2 =
6 u |
25 u - 10 |
The number of wafers at first is repeated. Make the number of wafers at first the same. LCM of 2 and 5 is 10.
Total number of pastries left
= 6 u + 25 u - 10
= 31 u - 10
31 u - 10 = 269
31 u = 269 + 10
31 u = 279
1 u = 279 ÷ 31 = 9
Number of more wafers than cupcakes that Xavier sold
= 4 u - 10
= 4 x 9 - 10
= 36 - 10
= 26
Answer(s): 26
