PSLEVictoria made some croissants to sell.
34 of them were sardine croissants and the rest were beef croissants. After selling 305 beef croissants and
56 of the sardine croissants, she had
16 of the croissants left. How many croissants did Victoria sell?
|
Sardine croissants |
Beef croissants |
Total |
Comparing sardine croissants and beef croissants at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 305 |
|
After |
1x1
|
|
|
|
Sardine croissants |
Beef croissants |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 305 |
|
After
|
1 u
|
2 u - 305
|
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 - 305
= 3 u - 305
3 u - 305 = 1
13 u
3 u - 1
13 u = 305
1
23 u = 305
1 u = 305 ÷ 1
23 = 183
Total number of croissants that Victoria sold
= 5 u + 305
= 5 x 183 + 305
= 915 + 305
= 1220
Answer(s): 1220