Cody had some pastries.
27 of them were shortbreads. The rest were biscuits. He sold
35 of the shortbreads and 7 biscuits. In the end, he had 196 pastries left. How many pastries did he sell?
| |
Shortbreads |
Biscuits |
Comparing pastries
at first |
2x5 =
10 u |
5x5 =
25 u |
Before
|
5x2 =
10 u |
25 u |
Change
|
- 3x2 =
- 6 u |
- 7 |
After
|
2x2 =
4 u |
25 u - 7 |
The number of shortbreads at first is repeated. Make the number of shortbreads at first the same. LCM of 2 and 5 is 10.
Total number of pastries left
= 4 u + 25 u - 7
= 29 u - 7
29 u - 7 = 196
29 u = 196 + 7
29 u = 203
1 u = 203 ÷ 29 = 7
Number of pastries that Cody sold
= 6 u + 7
= 6 x 7 + 7
= 42 + 7
= 49
Answer(s): 49
