Ken had some pastries.
38 of them were shortbreads. The rest were tarts. He sold
56 of the shortbreads and 8 tarts. In the end, he had 25 pastries left. How many pastries did he sell?
| |
Shortbreads |
Tarts |
Comparing pastries
at first |
3x2 =
6 u |
5x2 =
10 u |
Before
|
6x1 =
6 u |
10 u |
Change
|
- 5x1 =
- 5 u |
- 8 |
After
|
1x1 =
1 u |
10 u - 8 |
The number of shortbreads at first is repeated. Make the number of shortbreads at first the same. LCM of 3 and 6 is 6.
Total number of pastries left
= 1 u + 10 u - 8
= 11 u - 8
11 u - 8 = 25
11 u = 25 + 8
11 u = 33
1 u = 33 ÷ 11 = 3
Number of pastries that Ken sold
= 5 u + 8
= 5 x 3 + 8
= 15 + 8
= 23
Answer(s): 23
