Gabriel had some pastries.
25 of them were cookies. The rest were macarons. He sold
56 of the cookies and 4 macarons. In the end, he had 56 pastries left. How many pastries did he sell?
| |
Cookies |
Macarons |
Comparing pastries
at first |
2x3 =
6 u |
3x3 =
9 u |
Before
|
6x1 =
6 u |
9 u |
Change
|
- 5x1 =
- 5 u |
- 4 |
After
|
1x1 =
1 u |
9 u - 4 |
The number of cookies at first is repeated. Make the number of cookies at first the same. LCM of 2 and 6 is 6.
Total number of pastries left
= 1 u + 9 u - 4
= 10 u - 4
10 u - 4 = 56
10 u = 56 + 4
10 u = 60
1 u = 60 ÷ 10 = 6
Number of pastries that Gabriel sold
= 5 u + 4
= 5 x 6 + 4
= 30 + 4
= 34
Answer(s): 34
