PSLEMary made some buns to sell.
34 of them were chicken buns and the rest were mushroom buns. After selling 294 mushroom buns and
56 of the chicken buns, she had
15 of the buns left. How many buns did Mary sell?
|
Chicken buns |
Mushroom buns |
Total |
Comparing chicken buns and mushroom buns at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 294 |
|
After |
1x1
|
|
|
|
Chicken buns |
Mushroom buns |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 294 |
|
After
|
1 u
|
2 u - 294
|
15 x 8 u = 135 u |
The number of chicken buns at first is repeated. Make the number of chicken buns at first the same. LCM of 3 and 6 is 6.
Number of buns left
= 1 u + 2 u - 294
= 3 u - 294
3 u - 294 = 1
35 u
3 u - 1
35 u = 294
1
25 u = 294
1 u = 294 ÷ 1
25 = 210
Total number of buns that Mary sold
= 5 u + 294
= 5 x 210 + 294
= 1050 + 294
= 1344
Answer(s): 1344