Glen had some pastries.
35 of them were scones. The rest were cookies. He sold
35 of the scones and 3 cookies. In the end, he had 45 pastries left. How many more scones than cookies did he sell?
| |
Scones |
Cookies |
Comparing pastries
at first |
3x5 =
15 u |
2x5 =
10 u |
Before
|
5x3 =
15 u |
10 u |
Change
|
- 3x3 =
- 9 u |
- 3 |
After
|
2x3 =
6 u |
10 u - 3 |
The number of scones at first is repeated. Make the number of scones at first the same. LCM of 3 and 5 is 15.
Total number of pastries left
= 6 u + 10 u - 3
= 16 u - 3
16 u - 3 = 45
16 u = 45 + 3
16 u = 48
1 u = 48 ÷ 16 = 3
Number of more scones than cookies that Glen sold
= 9 u - 3
= 9 x 3 - 3
= 27 - 3
= 24
Answer(s): 24
