John had some pastries.
27 of them were muffins. The rest were tarts. He sold
35 of the muffins and 3 tarts. In the end, he had 113 pastries left. How many more muffins than tarts did he sell?
| |
Muffins |
Tarts |
Comparing pastries
at first |
2x5 =
10 u |
5x5 =
25 u |
Before
|
5x2 =
10 u |
25 u |
Change
|
- 3x2 =
- 6 u |
- 3 |
After
|
2x2 =
4 u |
25 u - 3 |
The number of muffins at first is repeated. Make the number of muffins at first the same. LCM of 2 and 5 is 10.
Total number of pastries left
= 4 u + 25 u - 3
= 29 u - 3
29 u - 3 = 113
29 u = 113 + 3
29 u = 116
1 u = 116 ÷ 29 = 4
Number of more muffins than tarts that John sold
= 6 u - 3
= 6 x 4 - 3
= 24 - 3
= 21
Answer(s): 21
