PSLEElyse made some muffins to sell.
34 of them were mushroom muffins and the rest were lotus paste muffins. After selling 126 lotus paste muffins and
56 of the mushroom muffins, she had
15 of the muffins left. How many muffins did Elyse sell?
|
Mushroom muffins |
Lotus paste muffins |
Total |
Comparing mushroom muffins and lotus paste muffins at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 126 |
|
After |
1x1
|
|
|
|
Mushroom muffins |
Lotus paste muffins |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 126 |
|
After
|
1 u
|
2 u - 126
|
15 x 8 u = 135 u |
The number of mushroom muffins at first is repeated. Make the number of mushroom muffins at first the same. LCM of 3 and 6 is 6.
Number of muffins left
= 1 u + 2 u - 126
= 3 u - 126
3 u - 126 = 1
35 u
3 u - 1
35 u = 126
1
25 u = 126
1 u = 126 ÷ 1
25 = 90
Total number of muffins that Elyse sold
= 5 u + 126
= 5 x 90 + 126
= 450 + 126
= 576
Answer(s): 576