PSLEWendy made some muffins to sell.
34 of them were lotus paste muffins and the rest were chicken muffins. After selling 308 chicken muffins and
56 of the lotus paste muffins, she had
15 of the muffins left. How many muffins did Wendy sell?
|
Lotus paste muffins |
Chicken muffins |
Total |
Comparing lotus paste muffins and chicken muffins at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 308 |
|
After |
1x1
|
|
|
|
Lotus paste muffins |
Chicken muffins |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 308 |
|
After
|
1 u
|
2 u - 308
|
15 x 8 u = 135 u |
The number of lotus paste muffins at first is repeated. Make the number of lotus paste muffins at first the same. LCM of 3 and 6 is 6.
Number of muffins left
= 1 u + 2 u - 308
= 3 u - 308
3 u - 308 = 1
35 u
3 u - 1
35 u = 308
1
25 u = 308
1 u = 308 ÷ 1
25 = 220
Total number of muffins that Wendy sold
= 5 u + 308
= 5 x 220 + 308
= 1100 + 308
= 1408
Answer(s): 1408