Jack had some pastries.
27 of them were tarts. The rest were cookies. He sold
56 of the tarts and 8 cookies. In the end, he had 88 pastries left. How many more tarts than cookies did he sell?
| |
Tarts |
Cookies |
Comparing pastries
at first |
2x3 =
6 u |
5x3 =
15 u |
Before
|
6x1 =
6 u |
15 u |
Change
|
- 5x1 =
- 5 u |
- 8 |
After
|
1x1 =
1 u |
15 u - 8 |
The number of tarts at first is repeated. Make the number of tarts at first the same. LCM of 2 and 6 is 6.
Total number of pastries left
= 1 u + 15 u - 8
= 16 u - 8
16 u - 8 = 88
16 u = 88 + 8
16 u = 96
1 u = 96 ÷ 16 = 6
Number of more tarts than cookies that Jack sold
= 5 u - 8
= 5 x 6 - 8
= 30 - 8
= 22
Answer(s): 22
