Vincent had some pastries.
38 of them were cookies. The rest were shortbreads. He sold
56 of the cookies and 14 shortbreads. In the end, he had 74 pastries left. How many pastries did he sell?
| |
Cookies |
Shortbreads |
Comparing pastries
at first |
3x2 =
6 u |
5x2 =
10 u |
Before
|
6x1 =
6 u |
10 u |
Change
|
- 5x1 =
- 5 u |
- 14 |
After
|
1x1 =
1 u |
10 u - 14 |
The number of cookies at first is repeated. Make the number of cookies at first the same. LCM of 3 and 6 is 6.
Total number of pastries left
= 1 u + 10 u - 14
= 11 u - 14
11 u - 14 = 74
11 u = 74 + 14
11 u = 88
1 u = 88 ÷ 11 = 8
Number of pastries that Vincent sold
= 5 u + 14
= 5 x 8 + 14
= 40 + 14
= 54
Answer(s): 54
