Michael had some pastries.
38 of them were scones. The rest were tarts. He sold
56 of the scones and 4 tarts. In the end, he had 73 pastries left. How many pastries did he sell?
| |
Scones |
Tarts |
Comparing pastries
at first |
3x2 =
6 u |
5x2 =
10 u |
Before
|
6x1 =
6 u |
10 u |
Change
|
- 5x1 =
- 5 u |
- 4 |
After
|
1x1 =
1 u |
10 u - 4 |
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 + 10 u - 4
= 11 u - 4
11 u - 4 = 73
11 u = 73 + 4
11 u = 77
1 u = 77 ÷ 11 = 7
Number of pastries that Michael sold
= 5 u + 4
= 5 x 7 + 4
= 35 + 4
= 39
Answer(s): 39
