Tim had some pastries.
35 of them were croissants. The rest were biscuits. He sold
35 of the croissants and 5 biscuits. In the end, he had 59 pastries left. How many pastries did he sell?
| |
Croissants |
Biscuits |
Comparing pastries
at first |
3x5 =
15 u |
2x5 =
10 u |
Before
|
5x3 =
15 u |
10 u |
Change
|
- 3x3 =
- 9 u |
- 5 |
After
|
2x3 =
6 u |
10 u - 5 |
The number of croissants at first is repeated. Make the number of croissants at first the same. LCM of 3 and 5 is 15.
Total number of pastries left
= 6 u + 10 u - 5
= 16 u - 5
16 u - 5 = 59
16 u = 59 + 5
16 u = 64
1 u = 64 ÷ 16 = 4
Number of pastries that Tim sold
= 9 u + 5
= 9 x 4 + 5
= 36 + 5
= 41
Answer(s): 41
