PSLEJoelle made some muffins to sell.
34 of them were beef muffins and the rest were lotus paste muffins. After selling 340 lotus paste muffins and
56 of the beef muffins, she had
16 of the muffins left. How many muffins did Joelle sell?
|
Beef muffins |
Lotus paste muffins |
Total |
Comparing beef muffins and lotus paste muffins at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 340 |
|
After |
1x1
|
|
|
|
Beef muffins |
Lotus paste muffins |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 340 |
|
After
|
1 u
|
2 u - 340
|
16 x 8 u = 113 u |
The number of beef muffins at first is repeated. Make the number of beef muffins at first the same. LCM of 3 and 6 is 6.
Number of muffins left
= 1 u + 2 u - 340
= 3 u - 340
3 u - 340 = 1
13 u
3 u - 1
13 u = 340
1
23 u = 340
1 u = 340 ÷ 1
23 = 204
Total number of muffins that Joelle sold
= 5 u + 340
= 5 x 204 + 340
= 1020 + 340
= 1360
Answer(s): 1360