PSLEShiyun made some muffins to sell.
34 of them were beef muffins and the rest were curry muffins. After selling 203 curry muffins and
56 of the beef muffins, she had
15 of the muffins left. How many muffins did Shiyun sell?
|
Beef muffins |
Curry muffins |
Total |
Comparing beef muffins and curry muffins at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 203 |
|
After |
1x1
|
|
|
|
Beef muffins |
Curry muffins |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 203 |
|
After
|
1 u
|
2 u - 203
|
15 x 8 u = 135 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 - 203
= 3 u - 203
3 u - 203 = 1
35 u
3 u - 1
35 u = 203
1
25 u = 203
1 u = 203 ÷ 1
25 = 145
Total number of muffins that Shiyun sold
= 5 u + 203
= 5 x 145 + 203
= 725 + 203
= 928
Answer(s): 928