PSLETina made some croissants to sell.
34 of them were curry croissants and the rest were sardine croissants. After selling 245 sardine croissants and
56 of the curry croissants, she had
15 of the croissants left. How many croissants did Tina sell?
|
Curry croissants |
Sardine croissants |
Total |
Comparing curry croissants and sardine croissants at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 245 |
|
After |
1x1
|
|
|
|
Curry croissants |
Sardine croissants |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 245 |
|
After
|
1 u
|
2 u - 245
|
15 x 8 u = 135 u |
The number of curry croissants at first is repeated. Make the number of curry croissants at first the same. LCM of 3 and 6 is 6.
Number of croissants left
= 1 u + 2 u - 245
= 3 u - 245
3 u - 245 = 1
35 u
3 u - 1
35 u = 245
1
25 u = 245
1 u = 245 ÷ 1
25 = 175
Total number of croissants that Tina sold
= 5 u + 245
= 5 x 175 + 245
= 875 + 245
= 1120
Answer(s): 1120