Luke had some pastries.
37 of them were scones. The rest were cookies. He sold
56 of the scones and 11 cookies. In the end, he had 25 pastries left. How many pastries did he sell?
| |
Scones |
Cookies |
Comparing pastries
at first |
3x2 =
6 u |
4x2 =
8 u |
Before
|
6x1 =
6 u |
8 u |
Change
|
- 5x1 =
- 5 u |
- 11 |
After
|
1x1 =
1 u |
8 u - 11 |
The number of scones at first is repeated. Make the number of scones at first the same. LCM of 3 and 6 is 6.
Total number of pastries left
= 1 u + 8 u - 11
= 9 u - 11
9 u - 11 = 25
9 u = 25 + 11
9 u = 36
1 u = 36 ÷ 9 = 4
Number of pastries that Luke sold
= 5 u + 11
= 5 x 4 + 11
= 20 + 11
= 31
Answer(s): 31
