PSLELucy made some buns to sell.
34 of them were beef buns and the rest were mushroom buns. After selling 133 mushroom buns and
56 of the beef buns, she had
15 of the buns left. How many buns did Lucy sell?
|
Beef buns |
Mushroom buns |
Total |
Comparing beef buns and mushroom buns at first |
3x2 |
1x2 |
4x2
|
Before |
6x1 |
|
|
Change |
- 5x1
|
- 133 |
|
After |
1x1
|
|
|
|
Beef buns |
Mushroom buns |
Total |
Before |
6 u |
2 u |
8 u
|
Change |
- 5 u
|
- 133 |
|
After
|
1 u
|
2 u - 133
|
15 x 8 u = 135 u |
The number of beef buns at first is repeated. Make the number of beef buns at first the same. LCM of 3 and 6 is 6.
Number of buns left
= 1 u + 2 u - 133
= 3 u - 133
3 u - 133 = 1
35 u
3 u - 1
35 u = 133
1
25 u = 133
1 u = 133 ÷ 1
25 = 95
Total number of buns that Lucy sold
= 5 u + 133
= 5 x 95 + 133
= 475 + 133
= 608
Answer(s): 608