PSLEXandra made some croissants to sell.
34 of them were mushroom croissants and the rest were sardine croissants. After selling 295 sardine croissants and
56 of the mushroom croissants, she had
16 of the croissants left. How many croissants did Xandra sell?
|
Mushroom croissants |
Sardine croissants |
Total |
Comparing mushroom croissants and sardine croissants at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 295 |
|
After |
1x1
|
|
|
|
Mushroom croissants |
Sardine croissants |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 295 |
|
After
|
1 u
|
2 u - 295
|
16 x 8 u = 113 u |
The number of mushroom croissants at first is repeated. Make the number of mushroom croissants at first the same. LCM of 3 and 6 is 6.
Number of croissants left
= 1 u + 2 u - 295
= 3 u - 295
3 u - 295 = 1
13 u
3 u - 1
13 u = 295
1
23 u = 295
1 u = 295 ÷ 1
23 = 177
Total number of croissants that Xandra sold
= 5 u + 295
= 5 x 177 + 295
= 885 + 295
= 1180
Answer(s): 1180