Cody had some pastries.
35 of them were wafers. The rest were cookies. He sold
34 of the wafers and 5 cookies. In the end, he had 28 pastries left. How many more wafers than cookies did he sell?
| |
Wafers |
Cookies |
Comparing pastries
at first |
3x4 =
12 u |
2x4 =
8 u |
Before
|
4x3 =
12 u |
8 u |
Change
|
- 3x3 =
- 9 u |
- 5 |
After
|
1x3 =
3 u |
8 u - 5 |
The number of wafers at first is repeated. Make the number of wafers at first the same. LCM of 3 and 4 is 12.
Total number of pastries left
= 3 u + 8 u - 5
= 11 u - 5
11 u - 5 = 28
11 u = 28 + 5
11 u = 33
1 u = 33 ÷ 11 = 3
Number of more wafers than cookies that Cody sold
= 9 u - 5
= 9 x 3 - 5
= 27 - 5
= 22
Answer(s): 22
