Zane had some pastries.
58 of them were cookies. The rest were macarons. He sold
56 of the cookies and 4 macarons. In the end, he had 180 pastries left. How many pastries did he sell?
| |
Cookies |
Macarons |
Comparing pastries
at first |
5x6 =
30 u |
3x6 =
18 u |
Before
|
6x5 =
30 u |
18 u |
Change
|
- 5x5 =
- 25 u |
- 4 |
After
|
1x5 =
5 u |
18 u - 4 |
The number of cookies at first is repeated. Make the number of cookies at first the same. LCM of 5 and 6 is 30.
Total number of pastries left
= 5 u + 18 u - 4
= 23 u - 4
23 u - 4 = 180
23 u = 180 + 4
23 u = 184
1 u = 184 ÷ 23 = 8
Number of pastries that Zane sold
= 25 u + 4
= 25 x 8 + 4
= 200 + 4
= 204
Answer(s): 204
