Tommy had some pastries.
38 of them were muffins. The rest were croissants. He sold
25 of the muffins and 5 croissants. In the end, he had 267 pastries left. How many pastries did he sell?
| |
Muffins |
Croissants |
Comparing pastries
at first |
3x5 =
15 u |
5x5 =
25 u |
Before
|
5x3 =
15 u |
25 u |
Change
|
- 2x3 =
- 6 u |
- 5 |
After
|
3x3 =
9 u |
25 u - 5 |
The number of muffins at first is repeated. Make the number of muffins at first the same. LCM of 3 and 5 is 15.
Total number of pastries left
= 9 u + 25 u - 5
= 34 u - 5
34 u - 5 = 267
34 u = 267 + 5
34 u = 272
1 u = 272 ÷ 34 = 8
Number of pastries that Tommy sold
= 6 u + 5
= 6 x 8 + 5
= 48 + 5
= 53
Answer(s): 53
