Neave had some pastries.
47 of them were cookies. The rest were muffins. He sold
25 of the cookies and 16 muffins. In the end, he had 146 pastries left. How many pastries did he sell?
| |
Cookies |
Muffins |
Comparing pastries
at first |
4x5 =
20 u |
3x5 =
15 u |
Before
|
5x4 =
20 u |
15 u |
Change
|
- 2x4 =
- 8 u |
- 16 |
After
|
3x4 =
12 u |
15 u - 16 |
The number of cookies at first is repeated. Make the number of cookies at first the same. LCM of 4 and 5 is 20.
Total number of pastries left
= 12 u + 15 u - 16
= 27 u - 16
27 u - 16 = 146
27 u = 146 + 16
27 u = 162
1 u = 162 ÷ 27 = 6
Number of pastries that Neave sold
= 8 u + 16
= 8 x 6 + 16
= 48 + 16
= 64
Answer(s): 64
