Paul had some pastries.
37 of them were tarts. The rest were scones. He sold
34 of the tarts and 16 scones. In the end, he had 60 pastries left. How many more tarts than scones did he sell?
| |
Tarts |
Scones |
Comparing pastries
at first |
3x4 =
12 u |
4x4 =
16 u |
Before
|
4x3 =
12 u |
16 u |
Change
|
- 3x3 =
- 9 u |
- 16 |
After
|
1x3 =
3 u |
16 u - 16 |
The number of tarts at first is repeated. Make the number of tarts at first the same. LCM of 3 and 4 is 12.
Total number of pastries left
= 3 u + 16 u - 16
= 19 u - 16
19 u - 16 = 60
19 u = 60 + 16
19 u = 76
1 u = 76 ÷ 19 = 4
Number of more tarts than scones that Paul sold
= 9 u - 16
= 9 x 4 - 16
= 36 - 16
= 20
Answer(s): 20
