Nick had some pastries.
25 of them were shortbreads. The rest were wafers. He sold
56 of the shortbreads and 19 wafers. In the end, he had 61 pastries left. How many pastries did he sell?
| |
Shortbreads |
Wafers |
Comparing pastries
at first |
2x3 =
6 u |
3x3 =
9 u |
Before
|
6x1 =
6 u |
9 u |
Change
|
- 5x1 =
- 5 u |
- 19 |
After
|
1x1 =
1 u |
9 u - 19 |
The number of shortbreads at first is repeated. Make the number of shortbreads at first the same. LCM of 2 and 6 is 6.
Total number of pastries left
= 1 u + 9 u - 19
= 10 u - 19
10 u - 19 = 61
10 u = 61 + 19
10 u = 80
1 u = 80 ÷ 10 = 8
Number of pastries that Nick sold
= 5 u + 19
= 5 x 8 + 19
= 40 + 19
= 59
Answer(s): 59
