PSLEVictoria made some croissants to sell.
34 of them were sardine croissants and the rest were mushroom croissants. After selling 330 mushroom croissants and
56 of the sardine croissants, she had
16 of the croissants left. How many croissants did Victoria sell?
|
Sardine croissants |
Mushroom croissants |
Total |
Comparing sardine croissants and mushroom croissants at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 330 |
|
After |
1x1
|
|
|
|
Sardine croissants |
Mushroom croissants |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 330 |
|
After
|
1 u
|
2 u - 330
|
16 x 8 u = 113 u |
The number of sardine croissants at first is repeated. Make the number of sardine croissants at first the same. LCM of 3 and 6 is 6.
Number of croissants left
= 1 u + 2 u - 330
= 3 u - 330
3 u - 330 = 1
13 u
3 u - 1
13 u = 330
1
23 u = 330
1 u = 330 ÷ 1
23 = 198
Total number of croissants that Victoria sold
= 5 u + 330
= 5 x 198 + 330
= 990 + 330
= 1320
Answer(s): 1320