Ivan had some pastries.
38 of them were wafers. The rest were cookies. He sold
56 of the wafers and 19 cookies. In the end, he had 25 pastries left. How many more wafers than cookies did he sell?
| |
Wafers |
Cookies |
Comparing pastries
at first |
3x2 =
6 u |
5x2 =
10 u |
Before
|
6x1 =
6 u |
10 u |
Change
|
- 5x1 =
- 5 u |
- 19 |
After
|
1x1 =
1 u |
10 u - 19 |
The number of wafers at first is repeated. Make the number of wafers at first the same. LCM of 3 and 6 is 6.
Total number of pastries left
= 1 u + 10 u - 19
= 11 u - 19
11 u - 19 = 25
11 u = 25 + 19
11 u = 44
1 u = 44 ÷ 11 = 4
Number of more wafers than cookies that Ivan sold
= 5 u - 19
= 5 x 4 - 19
= 20 - 19
= 1
Answer(s): 1
