PSLEJulie made some croissants to sell.
34 of them were egg croissants and the rest were kaya croissants. After selling 160 kaya croissants and
56 of the egg croissants, she had
16 of the croissants left. How many croissants did Julie sell?
|
Egg croissants |
Kaya croissants |
Total |
Comparing egg croissants and kaya croissants at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 160 |
|
After |
1x1
|
|
|
|
Egg croissants |
Kaya croissants |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 160 |
|
After
|
1 u
|
2 u - 160
|
16 x 8 u = 113 u |
The number of egg croissants at first is repeated. Make the number of egg croissants at first the same. LCM of 3 and 6 is 6.
Number of croissants left
= 1 u + 2 u - 160
= 3 u - 160
3 u - 160 = 1
13 u
3 u - 1
13 u = 160
1
23 u = 160
1 u = 160 ÷ 1
23 = 96
Total number of croissants that Julie sold
= 5 u + 160
= 5 x 96 + 160
= 480 + 160
= 640
Answer(s): 640